| # Copyright 2019 The gRPC Authors |
| # |
| # 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 |
| # |
| # http://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. |
| """Common types for gRPC Async API""" |
| |
| from typing import (Any, AsyncIterable, Callable, Iterable, Sequence, Tuple, |
| TypeVar, Union) |
| |
| from grpc._cython.cygrpc import EOF |
| |
| from ._metadata import Metadata |
| from ._metadata import MetadataKey |
| from ._metadata import MetadataValue |
| |
| RequestType = TypeVar('RequestType') |
| ResponseType = TypeVar('ResponseType') |
| SerializingFunction = Callable[[Any], bytes] |
| DeserializingFunction = Callable[[bytes], Any] |
| MetadatumType = Tuple[MetadataKey, MetadataValue] |
| MetadataType = Union[Metadata, Sequence[MetadatumType]] |
| ChannelArgumentType = Sequence[Tuple[str, Any]] |
| EOFType = type(EOF) |
| DoneCallbackType = Callable[[Any], None] |
| RequestIterableType = Union[Iterable[Any], AsyncIterable[Any]] |
| ResponseIterableType = AsyncIterable[Any] |
