// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Code generated by protoc-gen-go_gapic. DO NOT EDIT.

package kms

import (
	"context"
	"fmt"
	"math"
	"net/url"
	"time"

	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	kmspb "google.golang.org/genproto/googleapis/cloud/kms/v1"
	iampb "google.golang.org/genproto/googleapis/iam/v1"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/metadata"
	"google.golang.org/protobuf/proto"
)

var newKeyManagementClientHook clientHook

// KeyManagementCallOptions contains the retry settings for each method of KeyManagementClient.
type KeyManagementCallOptions struct {
	ListKeyRings                  []gax.CallOption
	ListCryptoKeys                []gax.CallOption
	ListCryptoKeyVersions         []gax.CallOption
	ListImportJobs                []gax.CallOption
	GetKeyRing                    []gax.CallOption
	GetCryptoKey                  []gax.CallOption
	GetCryptoKeyVersion           []gax.CallOption
	GetPublicKey                  []gax.CallOption
	GetImportJob                  []gax.CallOption
	CreateKeyRing                 []gax.CallOption
	CreateCryptoKey               []gax.CallOption
	CreateCryptoKeyVersion        []gax.CallOption
	ImportCryptoKeyVersion        []gax.CallOption
	CreateImportJob               []gax.CallOption
	UpdateCryptoKey               []gax.CallOption
	UpdateCryptoKeyVersion        []gax.CallOption
	UpdateCryptoKeyPrimaryVersion []gax.CallOption
	DestroyCryptoKeyVersion       []gax.CallOption
	RestoreCryptoKeyVersion       []gax.CallOption
	Encrypt                       []gax.CallOption
	Decrypt                       []gax.CallOption
	AsymmetricSign                []gax.CallOption
	AsymmetricDecrypt             []gax.CallOption
	MacSign                       []gax.CallOption
	MacVerify                     []gax.CallOption
	GenerateRandomBytes           []gax.CallOption
	GetIamPolicy                  []gax.CallOption
	SetIamPolicy                  []gax.CallOption
	TestIamPermissions            []gax.CallOption
}

func defaultKeyManagementGRPCClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("cloudkms.googleapis.com:443"),
		internaloption.WithDefaultMTLSEndpoint("cloudkms.mtls.googleapis.com:443"),
		internaloption.WithDefaultAudience("https://cloudkms.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
		internaloption.EnableJwtWithScope(),
		option.WithGRPCDialOption(grpc.WithDefaultCallOptions(
			grpc.MaxCallRecvMsgSize(math.MaxInt32))),
	}
}

func defaultKeyManagementCallOptions() *KeyManagementCallOptions {
	return &KeyManagementCallOptions{
		ListKeyRings: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListCryptoKeys: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListCryptoKeyVersions: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		ListImportJobs: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetKeyRing: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetCryptoKey: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetCryptoKeyVersion: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetPublicKey: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetImportJob: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateKeyRing: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateCryptoKey: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateCryptoKeyVersion: []gax.CallOption{},
		ImportCryptoKeyVersion: []gax.CallOption{},
		CreateImportJob: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		UpdateCryptoKey: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		UpdateCryptoKeyVersion: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		UpdateCryptoKeyPrimaryVersion: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		DestroyCryptoKeyVersion: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		RestoreCryptoKeyVersion: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		Encrypt: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		Decrypt: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		AsymmetricSign: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		AsymmetricDecrypt: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		MacSign: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		MacVerify: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GenerateRandomBytes: []gax.CallOption{
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
					codes.DeadlineExceeded,
				}, gax.Backoff{
					Initial:    100 * time.Millisecond,
					Max:        60000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetIamPolicy:       []gax.CallOption{},
		SetIamPolicy:       []gax.CallOption{},
		TestIamPermissions: []gax.CallOption{},
	}
}

// internalKeyManagementClient is an interface that defines the methods available from Cloud Key Management Service (KMS) API.
type internalKeyManagementClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	ListKeyRings(context.Context, *kmspb.ListKeyRingsRequest, ...gax.CallOption) *KeyRingIterator
	ListCryptoKeys(context.Context, *kmspb.ListCryptoKeysRequest, ...gax.CallOption) *CryptoKeyIterator
	ListCryptoKeyVersions(context.Context, *kmspb.ListCryptoKeyVersionsRequest, ...gax.CallOption) *CryptoKeyVersionIterator
	ListImportJobs(context.Context, *kmspb.ListImportJobsRequest, ...gax.CallOption) *ImportJobIterator
	GetKeyRing(context.Context, *kmspb.GetKeyRingRequest, ...gax.CallOption) (*kmspb.KeyRing, error)
	GetCryptoKey(context.Context, *kmspb.GetCryptoKeyRequest, ...gax.CallOption) (*kmspb.CryptoKey, error)
	GetCryptoKeyVersion(context.Context, *kmspb.GetCryptoKeyVersionRequest, ...gax.CallOption) (*kmspb.CryptoKeyVersion, error)
	GetPublicKey(context.Context, *kmspb.GetPublicKeyRequest, ...gax.CallOption) (*kmspb.PublicKey, error)
	GetImportJob(context.Context, *kmspb.GetImportJobRequest, ...gax.CallOption) (*kmspb.ImportJob, error)
	CreateKeyRing(context.Context, *kmspb.CreateKeyRingRequest, ...gax.CallOption) (*kmspb.KeyRing, error)
	CreateCryptoKey(context.Context, *kmspb.CreateCryptoKeyRequest, ...gax.CallOption) (*kmspb.CryptoKey, error)
	CreateCryptoKeyVersion(context.Context, *kmspb.CreateCryptoKeyVersionRequest, ...gax.CallOption) (*kmspb.CryptoKeyVersion, error)
	ImportCryptoKeyVersion(context.Context, *kmspb.ImportCryptoKeyVersionRequest, ...gax.CallOption) (*kmspb.CryptoKeyVersion, error)
	CreateImportJob(context.Context, *kmspb.CreateImportJobRequest, ...gax.CallOption) (*kmspb.ImportJob, error)
	UpdateCryptoKey(context.Context, *kmspb.UpdateCryptoKeyRequest, ...gax.CallOption) (*kmspb.CryptoKey, error)
	UpdateCryptoKeyVersion(context.Context, *kmspb.UpdateCryptoKeyVersionRequest, ...gax.CallOption) (*kmspb.CryptoKeyVersion, error)
	UpdateCryptoKeyPrimaryVersion(context.Context, *kmspb.UpdateCryptoKeyPrimaryVersionRequest, ...gax.CallOption) (*kmspb.CryptoKey, error)
	DestroyCryptoKeyVersion(context.Context, *kmspb.DestroyCryptoKeyVersionRequest, ...gax.CallOption) (*kmspb.CryptoKeyVersion, error)
	RestoreCryptoKeyVersion(context.Context, *kmspb.RestoreCryptoKeyVersionRequest, ...gax.CallOption) (*kmspb.CryptoKeyVersion, error)
	Encrypt(context.Context, *kmspb.EncryptRequest, ...gax.CallOption) (*kmspb.EncryptResponse, error)
	Decrypt(context.Context, *kmspb.DecryptRequest, ...gax.CallOption) (*kmspb.DecryptResponse, error)
	AsymmetricSign(context.Context, *kmspb.AsymmetricSignRequest, ...gax.CallOption) (*kmspb.AsymmetricSignResponse, error)
	AsymmetricDecrypt(context.Context, *kmspb.AsymmetricDecryptRequest, ...gax.CallOption) (*kmspb.AsymmetricDecryptResponse, error)
	MacSign(context.Context, *kmspb.MacSignRequest, ...gax.CallOption) (*kmspb.MacSignResponse, error)
	MacVerify(context.Context, *kmspb.MacVerifyRequest, ...gax.CallOption) (*kmspb.MacVerifyResponse, error)
	GenerateRandomBytes(context.Context, *kmspb.GenerateRandomBytesRequest, ...gax.CallOption) (*kmspb.GenerateRandomBytesResponse, error)
	GetIamPolicy(context.Context, *iampb.GetIamPolicyRequest, ...gax.CallOption) (*iampb.Policy, error)
	SetIamPolicy(context.Context, *iampb.SetIamPolicyRequest, ...gax.CallOption) (*iampb.Policy, error)
	TestIamPermissions(context.Context, *iampb.TestIamPermissionsRequest, ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error)
}

// KeyManagementClient is a client for interacting with Cloud Key Management Service (KMS) API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// Google Cloud Key Management Service
//
// Manages cryptographic keys and operations using those keys. Implements a REST
// model with the following objects:
//
//   KeyRing
//
//   CryptoKey
//
//   CryptoKeyVersion
//
//   ImportJob
//
// If you are using manual gRPC libraries, see
// Using gRPC with Cloud KMS (at https://cloud.google.com/kms/docs/grpc).
type KeyManagementClient struct {
	// The internal transport-dependent client.
	internalClient internalKeyManagementClient

	// The call options for this service.
	CallOptions *KeyManagementCallOptions
}

// Wrapper methods routed to the internal client.

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *KeyManagementClient) Close() error {
	return c.internalClient.Close()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *KeyManagementClient) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
}

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *KeyManagementClient) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// ListKeyRings lists KeyRings.
func (c *KeyManagementClient) ListKeyRings(ctx context.Context, req *kmspb.ListKeyRingsRequest, opts ...gax.CallOption) *KeyRingIterator {
	return c.internalClient.ListKeyRings(ctx, req, opts...)
}

// ListCryptoKeys lists CryptoKeys.
func (c *KeyManagementClient) ListCryptoKeys(ctx context.Context, req *kmspb.ListCryptoKeysRequest, opts ...gax.CallOption) *CryptoKeyIterator {
	return c.internalClient.ListCryptoKeys(ctx, req, opts...)
}

// ListCryptoKeyVersions lists CryptoKeyVersions.
func (c *KeyManagementClient) ListCryptoKeyVersions(ctx context.Context, req *kmspb.ListCryptoKeyVersionsRequest, opts ...gax.CallOption) *CryptoKeyVersionIterator {
	return c.internalClient.ListCryptoKeyVersions(ctx, req, opts...)
}

// ListImportJobs lists ImportJobs.
func (c *KeyManagementClient) ListImportJobs(ctx context.Context, req *kmspb.ListImportJobsRequest, opts ...gax.CallOption) *ImportJobIterator {
	return c.internalClient.ListImportJobs(ctx, req, opts...)
}

// GetKeyRing returns metadata for a given KeyRing.
func (c *KeyManagementClient) GetKeyRing(ctx context.Context, req *kmspb.GetKeyRingRequest, opts ...gax.CallOption) (*kmspb.KeyRing, error) {
	return c.internalClient.GetKeyRing(ctx, req, opts...)
}

// GetCryptoKey returns metadata for a given CryptoKey, as
// well as its primary
// CryptoKeyVersion.
func (c *KeyManagementClient) GetCryptoKey(ctx context.Context, req *kmspb.GetCryptoKeyRequest, opts ...gax.CallOption) (*kmspb.CryptoKey, error) {
	return c.internalClient.GetCryptoKey(ctx, req, opts...)
}

// GetCryptoKeyVersion returns metadata for a given
// CryptoKeyVersion.
func (c *KeyManagementClient) GetCryptoKeyVersion(ctx context.Context, req *kmspb.GetCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	return c.internalClient.GetCryptoKeyVersion(ctx, req, opts...)
}

// GetPublicKey returns the public key for the given
// CryptoKeyVersion. The
// CryptoKey.purpose must be
// ASYMMETRIC_SIGN
// or
// ASYMMETRIC_DECRYPT.
func (c *KeyManagementClient) GetPublicKey(ctx context.Context, req *kmspb.GetPublicKeyRequest, opts ...gax.CallOption) (*kmspb.PublicKey, error) {
	return c.internalClient.GetPublicKey(ctx, req, opts...)
}

// GetImportJob returns metadata for a given ImportJob.
func (c *KeyManagementClient) GetImportJob(ctx context.Context, req *kmspb.GetImportJobRequest, opts ...gax.CallOption) (*kmspb.ImportJob, error) {
	return c.internalClient.GetImportJob(ctx, req, opts...)
}

// CreateKeyRing create a new KeyRing in a given Project and
// Location.
func (c *KeyManagementClient) CreateKeyRing(ctx context.Context, req *kmspb.CreateKeyRingRequest, opts ...gax.CallOption) (*kmspb.KeyRing, error) {
	return c.internalClient.CreateKeyRing(ctx, req, opts...)
}

// CreateCryptoKey create a new CryptoKey within a
// KeyRing.
//
// CryptoKey.purpose and
// CryptoKey.version_template.algorithm
// are required.
func (c *KeyManagementClient) CreateCryptoKey(ctx context.Context, req *kmspb.CreateCryptoKeyRequest, opts ...gax.CallOption) (*kmspb.CryptoKey, error) {
	return c.internalClient.CreateCryptoKey(ctx, req, opts...)
}

// CreateCryptoKeyVersion create a new CryptoKeyVersion in a
// CryptoKey.
//
// The server will assign the next sequential id. If unset,
// state will be set to
// ENABLED.
func (c *KeyManagementClient) CreateCryptoKeyVersion(ctx context.Context, req *kmspb.CreateCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	return c.internalClient.CreateCryptoKeyVersion(ctx, req, opts...)
}

// ImportCryptoKeyVersion import wrapped key material into a
// CryptoKeyVersion.
//
// All requests must specify a CryptoKey. If
// a CryptoKeyVersion is additionally
// specified in the request, key material will be reimported into that
// version. Otherwise, a new version will be created, and will be assigned the
// next sequential id within the CryptoKey.
func (c *KeyManagementClient) ImportCryptoKeyVersion(ctx context.Context, req *kmspb.ImportCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	return c.internalClient.ImportCryptoKeyVersion(ctx, req, opts...)
}

// CreateImportJob create a new ImportJob within a
// KeyRing.
//
// ImportJob.import_method is
// required.
func (c *KeyManagementClient) CreateImportJob(ctx context.Context, req *kmspb.CreateImportJobRequest, opts ...gax.CallOption) (*kmspb.ImportJob, error) {
	return c.internalClient.CreateImportJob(ctx, req, opts...)
}

// UpdateCryptoKey update a CryptoKey.
func (c *KeyManagementClient) UpdateCryptoKey(ctx context.Context, req *kmspb.UpdateCryptoKeyRequest, opts ...gax.CallOption) (*kmspb.CryptoKey, error) {
	return c.internalClient.UpdateCryptoKey(ctx, req, opts...)
}

// UpdateCryptoKeyVersion update a CryptoKeyVersion's
// metadata.
//
// state may be changed between
// ENABLED
// and
// DISABLED
// using this method. See
// DestroyCryptoKeyVersion
// and
// RestoreCryptoKeyVersion
// to move between other states.
func (c *KeyManagementClient) UpdateCryptoKeyVersion(ctx context.Context, req *kmspb.UpdateCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	return c.internalClient.UpdateCryptoKeyVersion(ctx, req, opts...)
}

// UpdateCryptoKeyPrimaryVersion update the version of a CryptoKey that
// will be used in
// Encrypt.
//
// Returns an error if called on a key whose purpose is not
// ENCRYPT_DECRYPT.
func (c *KeyManagementClient) UpdateCryptoKeyPrimaryVersion(ctx context.Context, req *kmspb.UpdateCryptoKeyPrimaryVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKey, error) {
	return c.internalClient.UpdateCryptoKeyPrimaryVersion(ctx, req, opts...)
}

// DestroyCryptoKeyVersion schedule a CryptoKeyVersion for
// destruction.
//
// Upon calling this method,
// CryptoKeyVersion.state will
// be set to
// DESTROY_SCHEDULED,
// and destroy_time will
// be set to the time
// destroy_scheduled_duration
// in the future. At that time, the
// state will automatically
// change to
// DESTROYED,
// and the key material will be irrevocably destroyed.
//
// Before the
// destroy_time is
// reached,
// RestoreCryptoKeyVersion
// may be called to reverse the process.
func (c *KeyManagementClient) DestroyCryptoKeyVersion(ctx context.Context, req *kmspb.DestroyCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	return c.internalClient.DestroyCryptoKeyVersion(ctx, req, opts...)
}

// RestoreCryptoKeyVersion restore a CryptoKeyVersion in the
// DESTROY_SCHEDULED
// state.
//
// Upon restoration of the CryptoKeyVersion,
// state will be set to
// DISABLED,
// and destroy_time will
// be cleared.
func (c *KeyManagementClient) RestoreCryptoKeyVersion(ctx context.Context, req *kmspb.RestoreCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	return c.internalClient.RestoreCryptoKeyVersion(ctx, req, opts...)
}

// Encrypt encrypts data, so that it can only be recovered by a call to
// Decrypt. The
// CryptoKey.purpose must be
// ENCRYPT_DECRYPT.
func (c *KeyManagementClient) Encrypt(ctx context.Context, req *kmspb.EncryptRequest, opts ...gax.CallOption) (*kmspb.EncryptResponse, error) {
	return c.internalClient.Encrypt(ctx, req, opts...)
}

// Decrypt decrypts data that was protected by
// Encrypt. The
// CryptoKey.purpose must be
// ENCRYPT_DECRYPT.
func (c *KeyManagementClient) Decrypt(ctx context.Context, req *kmspb.DecryptRequest, opts ...gax.CallOption) (*kmspb.DecryptResponse, error) {
	return c.internalClient.Decrypt(ctx, req, opts...)
}

// AsymmetricSign signs data using a CryptoKeyVersion
// with CryptoKey.purpose
// ASYMMETRIC_SIGN, producing a signature that can be verified with the public
// key retrieved from
// GetPublicKey.
func (c *KeyManagementClient) AsymmetricSign(ctx context.Context, req *kmspb.AsymmetricSignRequest, opts ...gax.CallOption) (*kmspb.AsymmetricSignResponse, error) {
	return c.internalClient.AsymmetricSign(ctx, req, opts...)
}

// AsymmetricDecrypt decrypts data that was encrypted with a public key retrieved from
// GetPublicKey
// corresponding to a CryptoKeyVersion
// with CryptoKey.purpose
// ASYMMETRIC_DECRYPT.
func (c *KeyManagementClient) AsymmetricDecrypt(ctx context.Context, req *kmspb.AsymmetricDecryptRequest, opts ...gax.CallOption) (*kmspb.AsymmetricDecryptResponse, error) {
	return c.internalClient.AsymmetricDecrypt(ctx, req, opts...)
}

// MacSign signs data using a CryptoKeyVersion
// with CryptoKey.purpose MAC,
// producing a tag that can be verified by another source with the same key.
func (c *KeyManagementClient) MacSign(ctx context.Context, req *kmspb.MacSignRequest, opts ...gax.CallOption) (*kmspb.MacSignResponse, error) {
	return c.internalClient.MacSign(ctx, req, opts...)
}

// MacVerify verifies MAC tag using a
// CryptoKeyVersion with
// CryptoKey.purpose MAC, and returns
// a response that indicates whether or not the verification was successful.
func (c *KeyManagementClient) MacVerify(ctx context.Context, req *kmspb.MacVerifyRequest, opts ...gax.CallOption) (*kmspb.MacVerifyResponse, error) {
	return c.internalClient.MacVerify(ctx, req, opts...)
}

// GenerateRandomBytes generate random bytes using the Cloud KMS randomness source in the provided
// location.
func (c *KeyManagementClient) GenerateRandomBytes(ctx context.Context, req *kmspb.GenerateRandomBytesRequest, opts ...gax.CallOption) (*kmspb.GenerateRandomBytesResponse, error) {
	return c.internalClient.GenerateRandomBytes(ctx, req, opts...)
}

// GetIamPolicy gets the access control policy for a resource. Returns an empty policy
// if the resource exists and does not have a policy set.
func (c *KeyManagementClient) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	return c.internalClient.GetIamPolicy(ctx, req, opts...)
}

// SetIamPolicy sets the access control policy on the specified resource. Replaces
// any existing policy.
//
// Can return NOT_FOUND, INVALID_ARGUMENT, and PERMISSION_DENIED
// errors.
func (c *KeyManagementClient) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	return c.internalClient.SetIamPolicy(ctx, req, opts...)
}

// TestIamPermissions returns permissions that a caller has on the specified resource. If the
// resource does not exist, this will return an empty set of
// permissions, not a NOT_FOUND error.
//
// Note: This operation is designed to be used for building
// permission-aware UIs and command-line tools, not for authorization
// checking. This operation may “fail open” without warning.
func (c *KeyManagementClient) TestIamPermissions(ctx context.Context, req *iampb.TestIamPermissionsRequest, opts ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error) {
	return c.internalClient.TestIamPermissions(ctx, req, opts...)
}

// keyManagementGRPCClient is a client for interacting with Cloud Key Management Service (KMS) API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type keyManagementGRPCClient struct {
	// Connection pool of gRPC connections to the service.
	connPool gtransport.ConnPool

	// flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE
	disableDeadlines bool

	// Points back to the CallOptions field of the containing KeyManagementClient
	CallOptions **KeyManagementCallOptions

	// The gRPC API client.
	keyManagementClient kmspb.KeyManagementServiceClient

	iamPolicyClient iampb.IAMPolicyClient

	// The x-goog-* metadata to be sent with each request.
	xGoogMetadata metadata.MD
}

// NewKeyManagementClient creates a new key management service client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// Google Cloud Key Management Service
//
// Manages cryptographic keys and operations using those keys. Implements a REST
// model with the following objects:
//
//   KeyRing
//
//   CryptoKey
//
//   CryptoKeyVersion
//
//   ImportJob
//
// If you are using manual gRPC libraries, see
// Using gRPC with Cloud KMS (at https://cloud.google.com/kms/docs/grpc).
func NewKeyManagementClient(ctx context.Context, opts ...option.ClientOption) (*KeyManagementClient, error) {
	clientOpts := defaultKeyManagementGRPCClientOptions()
	if newKeyManagementClientHook != nil {
		hookOpts, err := newKeyManagementClientHook(ctx, clientHookParams{})
		if err != nil {
			return nil, err
		}
		clientOpts = append(clientOpts, hookOpts...)
	}

	disableDeadlines, err := checkDisableDeadlines()
	if err != nil {
		return nil, err
	}

	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
	if err != nil {
		return nil, err
	}
	client := KeyManagementClient{CallOptions: defaultKeyManagementCallOptions()}

	c := &keyManagementGRPCClient{
		connPool:            connPool,
		disableDeadlines:    disableDeadlines,
		keyManagementClient: kmspb.NewKeyManagementServiceClient(connPool),
		CallOptions:         &client.CallOptions,
		iamPolicyClient:     iampb.NewIAMPolicyClient(connPool),
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	return &client, nil
}

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *keyManagementGRPCClient) Connection() *grpc.ClientConn {
	return c.connPool.Conn()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *keyManagementGRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *keyManagementGRPCClient) Close() error {
	return c.connPool.Close()
}

func (c *keyManagementGRPCClient) ListKeyRings(ctx context.Context, req *kmspb.ListKeyRingsRequest, opts ...gax.CallOption) *KeyRingIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListKeyRings[0:len((*c.CallOptions).ListKeyRings):len((*c.CallOptions).ListKeyRings)], opts...)
	it := &KeyRingIterator{}
	req = proto.Clone(req).(*kmspb.ListKeyRingsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*kmspb.KeyRing, string, error) {
		resp := &kmspb.ListKeyRingsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.keyManagementClient.ListKeyRings(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetKeyRings(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *keyManagementGRPCClient) ListCryptoKeys(ctx context.Context, req *kmspb.ListCryptoKeysRequest, opts ...gax.CallOption) *CryptoKeyIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListCryptoKeys[0:len((*c.CallOptions).ListCryptoKeys):len((*c.CallOptions).ListCryptoKeys)], opts...)
	it := &CryptoKeyIterator{}
	req = proto.Clone(req).(*kmspb.ListCryptoKeysRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*kmspb.CryptoKey, string, error) {
		resp := &kmspb.ListCryptoKeysResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.keyManagementClient.ListCryptoKeys(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetCryptoKeys(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *keyManagementGRPCClient) ListCryptoKeyVersions(ctx context.Context, req *kmspb.ListCryptoKeyVersionsRequest, opts ...gax.CallOption) *CryptoKeyVersionIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListCryptoKeyVersions[0:len((*c.CallOptions).ListCryptoKeyVersions):len((*c.CallOptions).ListCryptoKeyVersions)], opts...)
	it := &CryptoKeyVersionIterator{}
	req = proto.Clone(req).(*kmspb.ListCryptoKeyVersionsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*kmspb.CryptoKeyVersion, string, error) {
		resp := &kmspb.ListCryptoKeyVersionsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.keyManagementClient.ListCryptoKeyVersions(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetCryptoKeyVersions(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *keyManagementGRPCClient) ListImportJobs(ctx context.Context, req *kmspb.ListImportJobsRequest, opts ...gax.CallOption) *ImportJobIterator {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ListImportJobs[0:len((*c.CallOptions).ListImportJobs):len((*c.CallOptions).ListImportJobs)], opts...)
	it := &ImportJobIterator{}
	req = proto.Clone(req).(*kmspb.ListImportJobsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*kmspb.ImportJob, string, error) {
		resp := &kmspb.ListImportJobsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			var err error
			resp, err = c.keyManagementClient.ListImportJobs(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetImportJobs(), resp.GetNextPageToken(), nil
	}
	fetch := func(pageSize int, pageToken string) (string, error) {
		items, nextPageToken, err := it.InternalFetch(pageSize, pageToken)
		if err != nil {
			return "", err
		}
		it.items = append(it.items, items...)
		return nextPageToken, nil
	}

	it.pageInfo, it.nextFunc = iterator.NewPageInfo(fetch, it.bufLen, it.takeBuf)
	it.pageInfo.MaxSize = int(req.GetPageSize())
	it.pageInfo.Token = req.GetPageToken()

	return it
}

func (c *keyManagementGRPCClient) GetKeyRing(ctx context.Context, req *kmspb.GetKeyRingRequest, opts ...gax.CallOption) (*kmspb.KeyRing, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetKeyRing[0:len((*c.CallOptions).GetKeyRing):len((*c.CallOptions).GetKeyRing)], opts...)
	var resp *kmspb.KeyRing
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.GetKeyRing(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) GetCryptoKey(ctx context.Context, req *kmspb.GetCryptoKeyRequest, opts ...gax.CallOption) (*kmspb.CryptoKey, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetCryptoKey[0:len((*c.CallOptions).GetCryptoKey):len((*c.CallOptions).GetCryptoKey)], opts...)
	var resp *kmspb.CryptoKey
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.GetCryptoKey(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) GetCryptoKeyVersion(ctx context.Context, req *kmspb.GetCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetCryptoKeyVersion[0:len((*c.CallOptions).GetCryptoKeyVersion):len((*c.CallOptions).GetCryptoKeyVersion)], opts...)
	var resp *kmspb.CryptoKeyVersion
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.GetCryptoKeyVersion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) GetPublicKey(ctx context.Context, req *kmspb.GetPublicKeyRequest, opts ...gax.CallOption) (*kmspb.PublicKey, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetPublicKey[0:len((*c.CallOptions).GetPublicKey):len((*c.CallOptions).GetPublicKey)], opts...)
	var resp *kmspb.PublicKey
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.GetPublicKey(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) GetImportJob(ctx context.Context, req *kmspb.GetImportJobRequest, opts ...gax.CallOption) (*kmspb.ImportJob, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetImportJob[0:len((*c.CallOptions).GetImportJob):len((*c.CallOptions).GetImportJob)], opts...)
	var resp *kmspb.ImportJob
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.GetImportJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) CreateKeyRing(ctx context.Context, req *kmspb.CreateKeyRingRequest, opts ...gax.CallOption) (*kmspb.KeyRing, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateKeyRing[0:len((*c.CallOptions).CreateKeyRing):len((*c.CallOptions).CreateKeyRing)], opts...)
	var resp *kmspb.KeyRing
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.CreateKeyRing(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) CreateCryptoKey(ctx context.Context, req *kmspb.CreateCryptoKeyRequest, opts ...gax.CallOption) (*kmspb.CryptoKey, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateCryptoKey[0:len((*c.CallOptions).CreateCryptoKey):len((*c.CallOptions).CreateCryptoKey)], opts...)
	var resp *kmspb.CryptoKey
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.CreateCryptoKey(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) CreateCryptoKeyVersion(ctx context.Context, req *kmspb.CreateCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateCryptoKeyVersion[0:len((*c.CallOptions).CreateCryptoKeyVersion):len((*c.CallOptions).CreateCryptoKeyVersion)], opts...)
	var resp *kmspb.CryptoKeyVersion
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.CreateCryptoKeyVersion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) ImportCryptoKeyVersion(ctx context.Context, req *kmspb.ImportCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).ImportCryptoKeyVersion[0:len((*c.CallOptions).ImportCryptoKeyVersion):len((*c.CallOptions).ImportCryptoKeyVersion)], opts...)
	var resp *kmspb.CryptoKeyVersion
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.ImportCryptoKeyVersion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) CreateImportJob(ctx context.Context, req *kmspb.CreateImportJobRequest, opts ...gax.CallOption) (*kmspb.ImportJob, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).CreateImportJob[0:len((*c.CallOptions).CreateImportJob):len((*c.CallOptions).CreateImportJob)], opts...)
	var resp *kmspb.ImportJob
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.CreateImportJob(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) UpdateCryptoKey(ctx context.Context, req *kmspb.UpdateCryptoKeyRequest, opts ...gax.CallOption) (*kmspb.CryptoKey, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "crypto_key.name", url.QueryEscape(req.GetCryptoKey().GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateCryptoKey[0:len((*c.CallOptions).UpdateCryptoKey):len((*c.CallOptions).UpdateCryptoKey)], opts...)
	var resp *kmspb.CryptoKey
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.UpdateCryptoKey(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) UpdateCryptoKeyVersion(ctx context.Context, req *kmspb.UpdateCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "crypto_key_version.name", url.QueryEscape(req.GetCryptoKeyVersion().GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateCryptoKeyVersion[0:len((*c.CallOptions).UpdateCryptoKeyVersion):len((*c.CallOptions).UpdateCryptoKeyVersion)], opts...)
	var resp *kmspb.CryptoKeyVersion
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.UpdateCryptoKeyVersion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) UpdateCryptoKeyPrimaryVersion(ctx context.Context, req *kmspb.UpdateCryptoKeyPrimaryVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKey, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).UpdateCryptoKeyPrimaryVersion[0:len((*c.CallOptions).UpdateCryptoKeyPrimaryVersion):len((*c.CallOptions).UpdateCryptoKeyPrimaryVersion)], opts...)
	var resp *kmspb.CryptoKey
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.UpdateCryptoKeyPrimaryVersion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) DestroyCryptoKeyVersion(ctx context.Context, req *kmspb.DestroyCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).DestroyCryptoKeyVersion[0:len((*c.CallOptions).DestroyCryptoKeyVersion):len((*c.CallOptions).DestroyCryptoKeyVersion)], opts...)
	var resp *kmspb.CryptoKeyVersion
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.DestroyCryptoKeyVersion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) RestoreCryptoKeyVersion(ctx context.Context, req *kmspb.RestoreCryptoKeyVersionRequest, opts ...gax.CallOption) (*kmspb.CryptoKeyVersion, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).RestoreCryptoKeyVersion[0:len((*c.CallOptions).RestoreCryptoKeyVersion):len((*c.CallOptions).RestoreCryptoKeyVersion)], opts...)
	var resp *kmspb.CryptoKeyVersion
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.RestoreCryptoKeyVersion(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) Encrypt(ctx context.Context, req *kmspb.EncryptRequest, opts ...gax.CallOption) (*kmspb.EncryptResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).Encrypt[0:len((*c.CallOptions).Encrypt):len((*c.CallOptions).Encrypt)], opts...)
	var resp *kmspb.EncryptResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.Encrypt(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) Decrypt(ctx context.Context, req *kmspb.DecryptRequest, opts ...gax.CallOption) (*kmspb.DecryptResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).Decrypt[0:len((*c.CallOptions).Decrypt):len((*c.CallOptions).Decrypt)], opts...)
	var resp *kmspb.DecryptResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.Decrypt(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) AsymmetricSign(ctx context.Context, req *kmspb.AsymmetricSignRequest, opts ...gax.CallOption) (*kmspb.AsymmetricSignResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).AsymmetricSign[0:len((*c.CallOptions).AsymmetricSign):len((*c.CallOptions).AsymmetricSign)], opts...)
	var resp *kmspb.AsymmetricSignResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.AsymmetricSign(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) AsymmetricDecrypt(ctx context.Context, req *kmspb.AsymmetricDecryptRequest, opts ...gax.CallOption) (*kmspb.AsymmetricDecryptResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).AsymmetricDecrypt[0:len((*c.CallOptions).AsymmetricDecrypt):len((*c.CallOptions).AsymmetricDecrypt)], opts...)
	var resp *kmspb.AsymmetricDecryptResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.AsymmetricDecrypt(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) MacSign(ctx context.Context, req *kmspb.MacSignRequest, opts ...gax.CallOption) (*kmspb.MacSignResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).MacSign[0:len((*c.CallOptions).MacSign):len((*c.CallOptions).MacSign)], opts...)
	var resp *kmspb.MacSignResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.MacSign(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) MacVerify(ctx context.Context, req *kmspb.MacVerifyRequest, opts ...gax.CallOption) (*kmspb.MacVerifyResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).MacVerify[0:len((*c.CallOptions).MacVerify):len((*c.CallOptions).MacVerify)], opts...)
	var resp *kmspb.MacVerifyResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.MacVerify(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) GenerateRandomBytes(ctx context.Context, req *kmspb.GenerateRandomBytesRequest, opts ...gax.CallOption) (*kmspb.GenerateRandomBytesResponse, error) {
	if _, ok := ctx.Deadline(); !ok && !c.disableDeadlines {
		cctx, cancel := context.WithTimeout(ctx, 60000*time.Millisecond)
		defer cancel()
		ctx = cctx
	}
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "location", url.QueryEscape(req.GetLocation())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GenerateRandomBytes[0:len((*c.CallOptions).GenerateRandomBytes):len((*c.CallOptions).GenerateRandomBytes)], opts...)
	var resp *kmspb.GenerateRandomBytesResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.keyManagementClient.GenerateRandomBytes(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).GetIamPolicy[0:len((*c.CallOptions).GetIamPolicy):len((*c.CallOptions).GetIamPolicy)], opts...)
	var resp *iampb.Policy
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.iamPolicyClient.GetIamPolicy(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).SetIamPolicy[0:len((*c.CallOptions).SetIamPolicy):len((*c.CallOptions).SetIamPolicy)], opts...)
	var resp *iampb.Policy
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.iamPolicyClient.SetIamPolicy(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *keyManagementGRPCClient) TestIamPermissions(ctx context.Context, req *iampb.TestIamPermissionsRequest, opts ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error) {
	md := metadata.Pairs("x-goog-request-params", fmt.Sprintf("%s=%v", "resource", url.QueryEscape(req.GetResource())))

	ctx = insertMetadata(ctx, c.xGoogMetadata, md)
	opts = append((*c.CallOptions).TestIamPermissions[0:len((*c.CallOptions).TestIamPermissions):len((*c.CallOptions).TestIamPermissions)], opts...)
	var resp *iampb.TestIamPermissionsResponse
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.iamPolicyClient.TestIamPermissions(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

// CryptoKeyIterator manages a stream of *kmspb.CryptoKey.
type CryptoKeyIterator struct {
	items    []*kmspb.CryptoKey
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*kmspb.CryptoKey, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *CryptoKeyIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *CryptoKeyIterator) Next() (*kmspb.CryptoKey, error) {
	var item *kmspb.CryptoKey
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *CryptoKeyIterator) bufLen() int {
	return len(it.items)
}

func (it *CryptoKeyIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}

// CryptoKeyVersionIterator manages a stream of *kmspb.CryptoKeyVersion.
type CryptoKeyVersionIterator struct {
	items    []*kmspb.CryptoKeyVersion
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*kmspb.CryptoKeyVersion, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *CryptoKeyVersionIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *CryptoKeyVersionIterator) Next() (*kmspb.CryptoKeyVersion, error) {
	var item *kmspb.CryptoKeyVersion
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *CryptoKeyVersionIterator) bufLen() int {
	return len(it.items)
}

func (it *CryptoKeyVersionIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}

// ImportJobIterator manages a stream of *kmspb.ImportJob.
type ImportJobIterator struct {
	items    []*kmspb.ImportJob
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*kmspb.ImportJob, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *ImportJobIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *ImportJobIterator) Next() (*kmspb.ImportJob, error) {
	var item *kmspb.ImportJob
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *ImportJobIterator) bufLen() int {
	return len(it.items)
}

func (it *ImportJobIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}

// KeyRingIterator manages a stream of *kmspb.KeyRing.
type KeyRingIterator struct {
	items    []*kmspb.KeyRing
	pageInfo *iterator.PageInfo
	nextFunc func() error

	// Response is the raw response for the current page.
	// It must be cast to the RPC response type.
	// Calling Next() or InternalFetch() updates this value.
	Response interface{}

	// InternalFetch is for use by the Google Cloud Libraries only.
	// It is not part of the stable interface of this package.
	//
	// InternalFetch returns results from a single call to the underlying RPC.
	// The number of results is no greater than pageSize.
	// If there are no more results, nextPageToken is empty and err is nil.
	InternalFetch func(pageSize int, pageToken string) (results []*kmspb.KeyRing, nextPageToken string, err error)
}

// PageInfo supports pagination. See the google.golang.org/api/iterator package for details.
func (it *KeyRingIterator) PageInfo() *iterator.PageInfo {
	return it.pageInfo
}

// Next returns the next result. Its second return value is iterator.Done if there are no more
// results. Once Next returns Done, all subsequent calls will return Done.
func (it *KeyRingIterator) Next() (*kmspb.KeyRing, error) {
	var item *kmspb.KeyRing
	if err := it.nextFunc(); err != nil {
		return item, err
	}
	item = it.items[0]
	it.items = it.items[1:]
	return item, nil
}

func (it *KeyRingIterator) bufLen() int {
	return len(it.items)
}

func (it *KeyRingIterator) takeBuf() interface{} {
	b := it.items
	it.items = nil
	return b
}