networkconnectivity/apiv1alpha1/hub_client.go

// Copyright 2024 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 networkconnectivity

import (
	"bytes"
	"context"
	"fmt"
	"io"
	"math"
	"net/http"
	"net/url"
	"time"

	"cloud.google.com/go/longrunning"
	lroauto "cloud.google.com/go/longrunning/autogen"
	longrunningpb "cloud.google.com/go/longrunning/autogen/longrunningpb"
	networkconnectivitypb "cloud.google.com/go/networkconnectivity/apiv1alpha1/networkconnectivitypb"
	gax "github.com/googleapis/gax-go/v2"
	"google.golang.org/api/googleapi"
	"google.golang.org/api/iterator"
	"google.golang.org/api/option"
	"google.golang.org/api/option/internaloption"
	gtransport "google.golang.org/api/transport/grpc"
	httptransport "google.golang.org/api/transport/http"
	"google.golang.org/grpc"
	"google.golang.org/grpc/codes"
	"google.golang.org/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"
)

var newHubClientHook clientHook

// HubCallOptions contains the retry settings for each method of HubClient.
type HubCallOptions struct {
	ListHubs    []gax.CallOption
	GetHub      []gax.CallOption
	CreateHub   []gax.CallOption
	UpdateHub   []gax.CallOption
	DeleteHub   []gax.CallOption
	ListSpokes  []gax.CallOption
	GetSpoke    []gax.CallOption
	CreateSpoke []gax.CallOption
	UpdateSpoke []gax.CallOption
	DeleteSpoke []gax.CallOption
}

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

func defaultHubCallOptions() *HubCallOptions {
	return &HubCallOptions{
		ListHubs: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetHub: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateHub: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		UpdateHub: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		DeleteHub: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		ListSpokes: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		GetSpoke: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnCodes([]codes.Code{
					codes.Unavailable,
				}, gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				})
			}),
		},
		CreateSpoke: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		UpdateSpoke: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		DeleteSpoke: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
	}
}

func defaultHubRESTCallOptions() *HubCallOptions {
	return &HubCallOptions{
		ListHubs: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		GetHub: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		CreateHub: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		UpdateHub: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		DeleteHub: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		ListSpokes: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		GetSpoke: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
			gax.WithRetry(func() gax.Retryer {
				return gax.OnHTTPCodes(gax.Backoff{
					Initial:    1000 * time.Millisecond,
					Max:        10000 * time.Millisecond,
					Multiplier: 1.30,
				},
					http.StatusServiceUnavailable)
			}),
		},
		CreateSpoke: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		UpdateSpoke: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
		DeleteSpoke: []gax.CallOption{
			gax.WithTimeout(60000 * time.Millisecond),
		},
	}
}

// internalHubClient is an interface that defines the methods available from Network Connectivity API.
type internalHubClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	ListHubs(context.Context, *networkconnectivitypb.ListHubsRequest, ...gax.CallOption) *HubIterator
	GetHub(context.Context, *networkconnectivitypb.GetHubRequest, ...gax.CallOption) (*networkconnectivitypb.Hub, error)
	CreateHub(context.Context, *networkconnectivitypb.CreateHubRequest, ...gax.CallOption) (*CreateHubOperation, error)
	CreateHubOperation(name string) *CreateHubOperation
	UpdateHub(context.Context, *networkconnectivitypb.UpdateHubRequest, ...gax.CallOption) (*UpdateHubOperation, error)
	UpdateHubOperation(name string) *UpdateHubOperation
	DeleteHub(context.Context, *networkconnectivitypb.DeleteHubRequest, ...gax.CallOption) (*DeleteHubOperation, error)
	DeleteHubOperation(name string) *DeleteHubOperation
	ListSpokes(context.Context, *networkconnectivitypb.ListSpokesRequest, ...gax.CallOption) *SpokeIterator
	GetSpoke(context.Context, *networkconnectivitypb.GetSpokeRequest, ...gax.CallOption) (*networkconnectivitypb.Spoke, error)
	CreateSpoke(context.Context, *networkconnectivitypb.CreateSpokeRequest, ...gax.CallOption) (*CreateSpokeOperation, error)
	CreateSpokeOperation(name string) *CreateSpokeOperation
	UpdateSpoke(context.Context, *networkconnectivitypb.UpdateSpokeRequest, ...gax.CallOption) (*UpdateSpokeOperation, error)
	UpdateSpokeOperation(name string) *UpdateSpokeOperation
	DeleteSpoke(context.Context, *networkconnectivitypb.DeleteSpokeRequest, ...gax.CallOption) (*DeleteSpokeOperation, error)
	DeleteSpokeOperation(name string) *DeleteSpokeOperation
}

// HubClient is a client for interacting with Network Connectivity API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// Network Connectivity Center is a hub-and-spoke abstraction for
// network connectivity management in Google Cloud. It reduces
// operational complexity through a simple, centralized connectivity management
// model.
type HubClient struct {
	// The internal transport-dependent client.
	internalClient internalHubClient

	// The call options for this service.
	CallOptions *HubCallOptions

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient *lroauto.OperationsClient
}

// 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 *HubClient) 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 *HubClient) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
}

// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *HubClient) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// ListHubs lists Hubs in a given project and location.
func (c *HubClient) ListHubs(ctx context.Context, req *networkconnectivitypb.ListHubsRequest, opts ...gax.CallOption) *HubIterator {
	return c.internalClient.ListHubs(ctx, req, opts...)
}

// GetHub gets details of a single Hub.
func (c *HubClient) GetHub(ctx context.Context, req *networkconnectivitypb.GetHubRequest, opts ...gax.CallOption) (*networkconnectivitypb.Hub, error) {
	return c.internalClient.GetHub(ctx, req, opts...)
}

// CreateHub creates a new Hub in a given project and location.
func (c *HubClient) CreateHub(ctx context.Context, req *networkconnectivitypb.CreateHubRequest, opts ...gax.CallOption) (*CreateHubOperation, error) {
	return c.internalClient.CreateHub(ctx, req, opts...)
}

// CreateHubOperation returns a new CreateHubOperation from a given name.
// The name must be that of a previously created CreateHubOperation, possibly from a different process.
func (c *HubClient) CreateHubOperation(name string) *CreateHubOperation {
	return c.internalClient.CreateHubOperation(name)
}

// UpdateHub updates the parameters of a single Hub.
func (c *HubClient) UpdateHub(ctx context.Context, req *networkconnectivitypb.UpdateHubRequest, opts ...gax.CallOption) (*UpdateHubOperation, error) {
	return c.internalClient.UpdateHub(ctx, req, opts...)
}

// UpdateHubOperation returns a new UpdateHubOperation from a given name.
// The name must be that of a previously created UpdateHubOperation, possibly from a different process.
func (c *HubClient) UpdateHubOperation(name string) *UpdateHubOperation {
	return c.internalClient.UpdateHubOperation(name)
}

// DeleteHub deletes a single Hub.
func (c *HubClient) DeleteHub(ctx context.Context, req *networkconnectivitypb.DeleteHubRequest, opts ...gax.CallOption) (*DeleteHubOperation, error) {
	return c.internalClient.DeleteHub(ctx, req, opts...)
}

// DeleteHubOperation returns a new DeleteHubOperation from a given name.
// The name must be that of a previously created DeleteHubOperation, possibly from a different process.
func (c *HubClient) DeleteHubOperation(name string) *DeleteHubOperation {
	return c.internalClient.DeleteHubOperation(name)
}

// ListSpokes lists Spokes in a given project and location.
func (c *HubClient) ListSpokes(ctx context.Context, req *networkconnectivitypb.ListSpokesRequest, opts ...gax.CallOption) *SpokeIterator {
	return c.internalClient.ListSpokes(ctx, req, opts...)
}

// GetSpoke gets details of a single Spoke.
func (c *HubClient) GetSpoke(ctx context.Context, req *networkconnectivitypb.GetSpokeRequest, opts ...gax.CallOption) (*networkconnectivitypb.Spoke, error) {
	return c.internalClient.GetSpoke(ctx, req, opts...)
}

// CreateSpoke creates a new Spoke in a given project and location.
func (c *HubClient) CreateSpoke(ctx context.Context, req *networkconnectivitypb.CreateSpokeRequest, opts ...gax.CallOption) (*CreateSpokeOperation, error) {
	return c.internalClient.CreateSpoke(ctx, req, opts...)
}

// CreateSpokeOperation returns a new CreateSpokeOperation from a given name.
// The name must be that of a previously created CreateSpokeOperation, possibly from a different process.
func (c *HubClient) CreateSpokeOperation(name string) *CreateSpokeOperation {
	return c.internalClient.CreateSpokeOperation(name)
}

// UpdateSpoke updates the parameters of a single Spoke.
func (c *HubClient) UpdateSpoke(ctx context.Context, req *networkconnectivitypb.UpdateSpokeRequest, opts ...gax.CallOption) (*UpdateSpokeOperation, error) {
	return c.internalClient.UpdateSpoke(ctx, req, opts...)
}

// UpdateSpokeOperation returns a new UpdateSpokeOperation from a given name.
// The name must be that of a previously created UpdateSpokeOperation, possibly from a different process.
func (c *HubClient) UpdateSpokeOperation(name string) *UpdateSpokeOperation {
	return c.internalClient.UpdateSpokeOperation(name)
}

// DeleteSpoke deletes a single Spoke.
func (c *HubClient) DeleteSpoke(ctx context.Context, req *networkconnectivitypb.DeleteSpokeRequest, opts ...gax.CallOption) (*DeleteSpokeOperation, error) {
	return c.internalClient.DeleteSpoke(ctx, req, opts...)
}

// DeleteSpokeOperation returns a new DeleteSpokeOperation from a given name.
// The name must be that of a previously created DeleteSpokeOperation, possibly from a different process.
func (c *HubClient) DeleteSpokeOperation(name string) *DeleteSpokeOperation {
	return c.internalClient.DeleteSpokeOperation(name)
}

// hubGRPCClient is a client for interacting with Network Connectivity API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type hubGRPCClient struct {
	// Connection pool of gRPC connections to the service.
	connPool gtransport.ConnPool

	// Points back to the CallOptions field of the containing HubClient
	CallOptions **HubCallOptions

	// The gRPC API client.
	hubClient networkconnectivitypb.HubServiceClient

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient **lroauto.OperationsClient

	// The x-goog-* metadata to be sent with each request.
	xGoogHeaders []string
}

// NewHubClient creates a new hub service client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// Network Connectivity Center is a hub-and-spoke abstraction for
// network connectivity management in Google Cloud. It reduces
// operational complexity through a simple, centralized connectivity management
// model.
func NewHubClient(ctx context.Context, opts ...option.ClientOption) (*HubClient, error) {
	clientOpts := defaultHubGRPCClientOptions()
	if newHubClientHook != nil {
		hookOpts, err := newHubClientHook(ctx, clientHookParams{})
		if err != nil {
			return nil, err
		}
		clientOpts = append(clientOpts, hookOpts...)
	}

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

	c := &hubGRPCClient{
		connPool:    connPool,
		hubClient:   networkconnectivitypb.NewHubServiceClient(connPool),
		CallOptions: &client.CallOptions,
	}
	c.setGoogleClientInfo()

	client.internalClient = c

	client.LROClient, err = lroauto.NewOperationsClient(ctx, gtransport.WithConnPool(connPool))
	if err != nil {
		// This error "should not happen", since we are just reusing old connection pool
		// and never actually need to dial.
		// If this does happen, we could leak connp. However, we cannot close conn:
		// If the user invoked the constructor with option.WithGRPCConn,
		// we would close a connection that's still in use.
		// TODO: investigate error conditions.
		return nil, err
	}
	c.LROClient = &client.LROClient
	return &client, nil
}

// Connection returns a connection to the API service.
//
// Deprecated: Connections are now pooled so this method does not always
// return the same resource.
func (c *hubGRPCClient) 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 *hubGRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogHeaders = []string{
		"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 *hubGRPCClient) Close() error {
	return c.connPool.Close()
}

// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type hubRESTClient struct {
	// The http endpoint to connect to.
	endpoint string

	// The http client.
	httpClient *http.Client

	// LROClient is used internally to handle long-running operations.
	// It is exposed so that its CallOptions can be modified if required.
	// Users should not Close this client.
	LROClient **lroauto.OperationsClient

	// The x-goog-* headers to be sent with each request.
	xGoogHeaders []string

	// Points back to the CallOptions field of the containing HubClient
	CallOptions **HubCallOptions
}

// NewHubRESTClient creates a new hub service rest client.
//
// Network Connectivity Center is a hub-and-spoke abstraction for
// network connectivity management in Google Cloud. It reduces
// operational complexity through a simple, centralized connectivity management
// model.
func NewHubRESTClient(ctx context.Context, opts ...option.ClientOption) (*HubClient, error) {
	clientOpts := append(defaultHubRESTClientOptions(), opts...)
	httpClient, endpoint, err := httptransport.NewClient(ctx, clientOpts...)
	if err != nil {
		return nil, err
	}

	callOpts := defaultHubRESTCallOptions()
	c := &hubRESTClient{
		endpoint:    endpoint,
		httpClient:  httpClient,
		CallOptions: &callOpts,
	}
	c.setGoogleClientInfo()

	lroOpts := []option.ClientOption{
		option.WithHTTPClient(httpClient),
		option.WithEndpoint(endpoint),
	}
	opClient, err := lroauto.NewOperationsRESTClient(ctx, lroOpts...)
	if err != nil {
		return nil, err
	}
	c.LROClient = &opClient

	return &HubClient{internalClient: c, CallOptions: callOpts}, nil
}

func defaultHubRESTClientOptions() []option.ClientOption {
	return []option.ClientOption{
		internaloption.WithDefaultEndpoint("https://networkconnectivity.googleapis.com"),
		internaloption.WithDefaultEndpointTemplate("https://networkconnectivity.UNIVERSE_DOMAIN"),
		internaloption.WithDefaultMTLSEndpoint("https://networkconnectivity.mtls.googleapis.com"),
		internaloption.WithDefaultUniverseDomain("googleapis.com"),
		internaloption.WithDefaultAudience("https://networkconnectivity.googleapis.com/"),
		internaloption.WithDefaultScopes(DefaultAuthScopes()...),
	}
}

// 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 *hubRESTClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", gax.GoVersion}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "rest", "UNKNOWN")
	c.xGoogHeaders = []string{
		"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 *hubRESTClient) Close() error {
	// Replace httpClient with nil to force cleanup.
	c.httpClient = nil
	return nil
}

// Connection returns a connection to the API service.
//
// Deprecated: This method always returns nil.
func (c *hubRESTClient) Connection() *grpc.ClientConn {
	return nil
}
func (c *hubGRPCClient) ListHubs(ctx context.Context, req *networkconnectivitypb.ListHubsRequest, opts ...gax.CallOption) *HubIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListHubs[0:len((*c.CallOptions).ListHubs):len((*c.CallOptions).ListHubs)], opts...)
	it := &HubIterator{}
	req = proto.Clone(req).(*networkconnectivitypb.ListHubsRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*networkconnectivitypb.Hub, string, error) {
		resp := &networkconnectivitypb.ListHubsResponse{}
		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.hubClient.ListHubs(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetHubs(), 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 *hubGRPCClient) GetHub(ctx context.Context, req *networkconnectivitypb.GetHubRequest, opts ...gax.CallOption) (*networkconnectivitypb.Hub, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetHub[0:len((*c.CallOptions).GetHub):len((*c.CallOptions).GetHub)], opts...)
	var resp *networkconnectivitypb.Hub
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.hubClient.GetHub(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *hubGRPCClient) CreateHub(ctx context.Context, req *networkconnectivitypb.CreateHubRequest, opts ...gax.CallOption) (*CreateHubOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).CreateHub[0:len((*c.CallOptions).CreateHub):len((*c.CallOptions).CreateHub)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.hubClient.CreateHub(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &CreateHubOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *hubGRPCClient) UpdateHub(ctx context.Context, req *networkconnectivitypb.UpdateHubRequest, opts ...gax.CallOption) (*UpdateHubOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "hub.name", url.QueryEscape(req.GetHub().GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).UpdateHub[0:len((*c.CallOptions).UpdateHub):len((*c.CallOptions).UpdateHub)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.hubClient.UpdateHub(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &UpdateHubOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *hubGRPCClient) DeleteHub(ctx context.Context, req *networkconnectivitypb.DeleteHubRequest, opts ...gax.CallOption) (*DeleteHubOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteHub[0:len((*c.CallOptions).DeleteHub):len((*c.CallOptions).DeleteHub)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.hubClient.DeleteHub(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &DeleteHubOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *hubGRPCClient) ListSpokes(ctx context.Context, req *networkconnectivitypb.ListSpokesRequest, opts ...gax.CallOption) *SpokeIterator {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).ListSpokes[0:len((*c.CallOptions).ListSpokes):len((*c.CallOptions).ListSpokes)], opts...)
	it := &SpokeIterator{}
	req = proto.Clone(req).(*networkconnectivitypb.ListSpokesRequest)
	it.InternalFetch = func(pageSize int, pageToken string) ([]*networkconnectivitypb.Spoke, string, error) {
		resp := &networkconnectivitypb.ListSpokesResponse{}
		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.hubClient.ListSpokes(ctx, req, settings.GRPC...)
			return err
		}, opts...)
		if err != nil {
			return nil, "", err
		}

		it.Response = resp
		return resp.GetSpokes(), 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 *hubGRPCClient) GetSpoke(ctx context.Context, req *networkconnectivitypb.GetSpokeRequest, opts ...gax.CallOption) (*networkconnectivitypb.Spoke, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).GetSpoke[0:len((*c.CallOptions).GetSpoke):len((*c.CallOptions).GetSpoke)], opts...)
	var resp *networkconnectivitypb.Spoke
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.hubClient.GetSpoke(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return resp, nil
}

func (c *hubGRPCClient) CreateSpoke(ctx context.Context, req *networkconnectivitypb.CreateSpokeRequest, opts ...gax.CallOption) (*CreateSpokeOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).CreateSpoke[0:len((*c.CallOptions).CreateSpoke):len((*c.CallOptions).CreateSpoke)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.hubClient.CreateSpoke(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &CreateSpokeOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *hubGRPCClient) UpdateSpoke(ctx context.Context, req *networkconnectivitypb.UpdateSpokeRequest, opts ...gax.CallOption) (*UpdateSpokeOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "spoke.name", url.QueryEscape(req.GetSpoke().GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).UpdateSpoke[0:len((*c.CallOptions).UpdateSpoke):len((*c.CallOptions).UpdateSpoke)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.hubClient.UpdateSpoke(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &UpdateSpokeOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

func (c *hubGRPCClient) DeleteSpoke(ctx context.Context, req *networkconnectivitypb.DeleteSpokeRequest, opts ...gax.CallOption) (*DeleteSpokeOperation, error) {
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	ctx = gax.InsertMetadataIntoOutgoingContext(ctx, hds...)
	opts = append((*c.CallOptions).DeleteSpoke[0:len((*c.CallOptions).DeleteSpoke):len((*c.CallOptions).DeleteSpoke)], opts...)
	var resp *longrunningpb.Operation
	err := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		var err error
		resp, err = c.hubClient.DeleteSpoke(ctx, req, settings.GRPC...)
		return err
	}, opts...)
	if err != nil {
		return nil, err
	}
	return &DeleteSpokeOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, resp),
	}, nil
}

// ListHubs lists Hubs in a given project and location.
func (c *hubRESTClient) ListHubs(ctx context.Context, req *networkconnectivitypb.ListHubsRequest, opts ...gax.CallOption) *HubIterator {
	it := &HubIterator{}
	req = proto.Clone(req).(*networkconnectivitypb.ListHubsRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*networkconnectivitypb.Hub, string, error) {
		resp := &networkconnectivitypb.ListHubsResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1alpha1/%v/hubs", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetOrderBy() != "" {
			params.Add("orderBy", fmt.Sprintf("%v", req.GetOrderBy()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetHubs(), 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
}

// GetHub gets details of a single Hub.
func (c *hubRESTClient) GetHub(ctx context.Context, req *networkconnectivitypb.GetHubRequest, opts ...gax.CallOption) (*networkconnectivitypb.Hub, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1alpha1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetHub[0:len((*c.CallOptions).GetHub):len((*c.CallOptions).GetHub)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &networkconnectivitypb.Hub{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// CreateHub creates a new Hub in a given project and location.
func (c *hubRESTClient) CreateHub(ctx context.Context, req *networkconnectivitypb.CreateHubRequest, opts ...gax.CallOption) (*CreateHubOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	body := req.GetHub()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1alpha1/%v/hubs", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetHubId() != "" {
		params.Add("hubId", fmt.Sprintf("%v", req.GetHubId()))
	}
	if req.GetRequestId() != "" {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1alpha1/%s", resp.GetName())
	return &CreateHubOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// UpdateHub updates the parameters of a single Hub.
func (c *hubRESTClient) UpdateHub(ctx context.Context, req *networkconnectivitypb.UpdateHubRequest, opts ...gax.CallOption) (*UpdateHubOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	body := req.GetHub()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1alpha1/%v", req.GetHub().GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetRequestId() != "" {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}
	if req.GetUpdateMask() != nil {
		updateMask, err := protojson.Marshal(req.GetUpdateMask())
		if err != nil {
			return nil, err
		}
		params.Add("updateMask", string(updateMask[1:len(updateMask)-1]))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "hub.name", url.QueryEscape(req.GetHub().GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("PATCH", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1alpha1/%s", resp.GetName())
	return &UpdateHubOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// DeleteHub deletes a single Hub.
func (c *hubRESTClient) DeleteHub(ctx context.Context, req *networkconnectivitypb.DeleteHubRequest, opts ...gax.CallOption) (*DeleteHubOperation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1alpha1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetRequestId() != "" {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("DELETE", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1alpha1/%s", resp.GetName())
	return &DeleteHubOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// ListSpokes lists Spokes in a given project and location.
func (c *hubRESTClient) ListSpokes(ctx context.Context, req *networkconnectivitypb.ListSpokesRequest, opts ...gax.CallOption) *SpokeIterator {
	it := &SpokeIterator{}
	req = proto.Clone(req).(*networkconnectivitypb.ListSpokesRequest)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	it.InternalFetch = func(pageSize int, pageToken string) ([]*networkconnectivitypb.Spoke, string, error) {
		resp := &networkconnectivitypb.ListSpokesResponse{}
		if pageToken != "" {
			req.PageToken = pageToken
		}
		if pageSize > math.MaxInt32 {
			req.PageSize = math.MaxInt32
		} else if pageSize != 0 {
			req.PageSize = int32(pageSize)
		}
		baseUrl, err := url.Parse(c.endpoint)
		if err != nil {
			return nil, "", err
		}
		baseUrl.Path += fmt.Sprintf("/v1alpha1/%v/spokes", req.GetParent())

		params := url.Values{}
		params.Add("$alt", "json;enum-encoding=int")
		if req.GetFilter() != "" {
			params.Add("filter", fmt.Sprintf("%v", req.GetFilter()))
		}
		if req.GetOrderBy() != "" {
			params.Add("orderBy", fmt.Sprintf("%v", req.GetOrderBy()))
		}
		if req.GetPageSize() != 0 {
			params.Add("pageSize", fmt.Sprintf("%v", req.GetPageSize()))
		}
		if req.GetPageToken() != "" {
			params.Add("pageToken", fmt.Sprintf("%v", req.GetPageToken()))
		}

		baseUrl.RawQuery = params.Encode()

		// Build HTTP headers from client and context metadata.
		hds := append(c.xGoogHeaders, "Content-Type", "application/json")
		headers := gax.BuildHeaders(ctx, hds...)
		e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
			if settings.Path != "" {
				baseUrl.Path = settings.Path
			}
			httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
			if err != nil {
				return err
			}
			httpReq.Header = headers

			httpRsp, err := c.httpClient.Do(httpReq)
			if err != nil {
				return err
			}
			defer httpRsp.Body.Close()

			if err = googleapi.CheckResponse(httpRsp); err != nil {
				return err
			}

			buf, err := io.ReadAll(httpRsp.Body)
			if err != nil {
				return err
			}

			if err := unm.Unmarshal(buf, resp); err != nil {
				return err
			}

			return nil
		}, opts...)
		if e != nil {
			return nil, "", e
		}
		it.Response = resp
		return resp.GetSpokes(), 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
}

// GetSpoke gets details of a single Spoke.
func (c *hubRESTClient) GetSpoke(ctx context.Context, req *networkconnectivitypb.GetSpokeRequest, opts ...gax.CallOption) (*networkconnectivitypb.Spoke, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1alpha1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	opts = append((*c.CallOptions).GetSpoke[0:len((*c.CallOptions).GetSpoke):len((*c.CallOptions).GetSpoke)], opts...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &networkconnectivitypb.Spoke{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("GET", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}
	return resp, nil
}

// CreateSpoke creates a new Spoke in a given project and location.
func (c *hubRESTClient) CreateSpoke(ctx context.Context, req *networkconnectivitypb.CreateSpokeRequest, opts ...gax.CallOption) (*CreateSpokeOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	body := req.GetSpoke()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1alpha1/%v/spokes", req.GetParent())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetRequestId() != "" {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}
	if req.GetSpokeId() != "" {
		params.Add("spokeId", fmt.Sprintf("%v", req.GetSpokeId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "parent", url.QueryEscape(req.GetParent()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("POST", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1alpha1/%s", resp.GetName())
	return &CreateSpokeOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// UpdateSpoke updates the parameters of a single Spoke.
func (c *hubRESTClient) UpdateSpoke(ctx context.Context, req *networkconnectivitypb.UpdateSpokeRequest, opts ...gax.CallOption) (*UpdateSpokeOperation, error) {
	m := protojson.MarshalOptions{AllowPartial: true, UseEnumNumbers: true}
	body := req.GetSpoke()
	jsonReq, err := m.Marshal(body)
	if err != nil {
		return nil, err
	}

	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1alpha1/%v", req.GetSpoke().GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetRequestId() != "" {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}
	if req.GetUpdateMask() != nil {
		updateMask, err := protojson.Marshal(req.GetUpdateMask())
		if err != nil {
			return nil, err
		}
		params.Add("updateMask", string(updateMask[1:len(updateMask)-1]))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "spoke.name", url.QueryEscape(req.GetSpoke().GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("PATCH", baseUrl.String(), bytes.NewReader(jsonReq))
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1alpha1/%s", resp.GetName())
	return &UpdateSpokeOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// DeleteSpoke deletes a single Spoke.
func (c *hubRESTClient) DeleteSpoke(ctx context.Context, req *networkconnectivitypb.DeleteSpokeRequest, opts ...gax.CallOption) (*DeleteSpokeOperation, error) {
	baseUrl, err := url.Parse(c.endpoint)
	if err != nil {
		return nil, err
	}
	baseUrl.Path += fmt.Sprintf("/v1alpha1/%v", req.GetName())

	params := url.Values{}
	params.Add("$alt", "json;enum-encoding=int")
	if req.GetRequestId() != "" {
		params.Add("requestId", fmt.Sprintf("%v", req.GetRequestId()))
	}

	baseUrl.RawQuery = params.Encode()

	// Build HTTP headers from client and context metadata.
	hds := []string{"x-goog-request-params", fmt.Sprintf("%s=%v", "name", url.QueryEscape(req.GetName()))}

	hds = append(c.xGoogHeaders, hds...)
	hds = append(hds, "Content-Type", "application/json")
	headers := gax.BuildHeaders(ctx, hds...)
	unm := protojson.UnmarshalOptions{AllowPartial: true, DiscardUnknown: true}
	resp := &longrunningpb.Operation{}
	e := gax.Invoke(ctx, func(ctx context.Context, settings gax.CallSettings) error {
		if settings.Path != "" {
			baseUrl.Path = settings.Path
		}
		httpReq, err := http.NewRequest("DELETE", baseUrl.String(), nil)
		if err != nil {
			return err
		}
		httpReq = httpReq.WithContext(ctx)
		httpReq.Header = headers

		httpRsp, err := c.httpClient.Do(httpReq)
		if err != nil {
			return err
		}
		defer httpRsp.Body.Close()

		if err = googleapi.CheckResponse(httpRsp); err != nil {
			return err
		}

		buf, err := io.ReadAll(httpRsp.Body)
		if err != nil {
			return err
		}

		if err := unm.Unmarshal(buf, resp); err != nil {
			return err
		}

		return nil
	}, opts...)
	if e != nil {
		return nil, e
	}

	override := fmt.Sprintf("/v1alpha1/%s", resp.GetName())
	return &DeleteSpokeOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, resp),
		pollPath: override,
	}, nil
}

// CreateHubOperation returns a new CreateHubOperation from a given name.
// The name must be that of a previously created CreateHubOperation, possibly from a different process.
func (c *hubGRPCClient) CreateHubOperation(name string) *CreateHubOperation {
	return &CreateHubOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// CreateHubOperation returns a new CreateHubOperation from a given name.
// The name must be that of a previously created CreateHubOperation, possibly from a different process.
func (c *hubRESTClient) CreateHubOperation(name string) *CreateHubOperation {
	override := fmt.Sprintf("/v1alpha1/%s", name)
	return &CreateHubOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// CreateSpokeOperation returns a new CreateSpokeOperation from a given name.
// The name must be that of a previously created CreateSpokeOperation, possibly from a different process.
func (c *hubGRPCClient) CreateSpokeOperation(name string) *CreateSpokeOperation {
	return &CreateSpokeOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// CreateSpokeOperation returns a new CreateSpokeOperation from a given name.
// The name must be that of a previously created CreateSpokeOperation, possibly from a different process.
func (c *hubRESTClient) CreateSpokeOperation(name string) *CreateSpokeOperation {
	override := fmt.Sprintf("/v1alpha1/%s", name)
	return &CreateSpokeOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// DeleteHubOperation returns a new DeleteHubOperation from a given name.
// The name must be that of a previously created DeleteHubOperation, possibly from a different process.
func (c *hubGRPCClient) DeleteHubOperation(name string) *DeleteHubOperation {
	return &DeleteHubOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// DeleteHubOperation returns a new DeleteHubOperation from a given name.
// The name must be that of a previously created DeleteHubOperation, possibly from a different process.
func (c *hubRESTClient) DeleteHubOperation(name string) *DeleteHubOperation {
	override := fmt.Sprintf("/v1alpha1/%s", name)
	return &DeleteHubOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// DeleteSpokeOperation returns a new DeleteSpokeOperation from a given name.
// The name must be that of a previously created DeleteSpokeOperation, possibly from a different process.
func (c *hubGRPCClient) DeleteSpokeOperation(name string) *DeleteSpokeOperation {
	return &DeleteSpokeOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// DeleteSpokeOperation returns a new DeleteSpokeOperation from a given name.
// The name must be that of a previously created DeleteSpokeOperation, possibly from a different process.
func (c *hubRESTClient) DeleteSpokeOperation(name string) *DeleteSpokeOperation {
	override := fmt.Sprintf("/v1alpha1/%s", name)
	return &DeleteSpokeOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// UpdateHubOperation returns a new UpdateHubOperation from a given name.
// The name must be that of a previously created UpdateHubOperation, possibly from a different process.
func (c *hubGRPCClient) UpdateHubOperation(name string) *UpdateHubOperation {
	return &UpdateHubOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// UpdateHubOperation returns a new UpdateHubOperation from a given name.
// The name must be that of a previously created UpdateHubOperation, possibly from a different process.
func (c *hubRESTClient) UpdateHubOperation(name string) *UpdateHubOperation {
	override := fmt.Sprintf("/v1alpha1/%s", name)
	return &UpdateHubOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}

// UpdateSpokeOperation returns a new UpdateSpokeOperation from a given name.
// The name must be that of a previously created UpdateSpokeOperation, possibly from a different process.
func (c *hubGRPCClient) UpdateSpokeOperation(name string) *UpdateSpokeOperation {
	return &UpdateSpokeOperation{
		lro: longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
	}
}

// UpdateSpokeOperation returns a new UpdateSpokeOperation from a given name.
// The name must be that of a previously created UpdateSpokeOperation, possibly from a different process.
func (c *hubRESTClient) UpdateSpokeOperation(name string) *UpdateSpokeOperation {
	override := fmt.Sprintf("/v1alpha1/%s", name)
	return &UpdateSpokeOperation{
		lro:      longrunning.InternalNewOperation(*c.LROClient, &longrunningpb.Operation{Name: name}),
		pollPath: override,
	}
}