36 lines
1.3 KiB
Python
36 lines
1.3 KiB
Python
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# Copyright 2019 The gRPC Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Common types for gRPC Async API"""
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from typing import (Any, AsyncIterable, Callable, Iterable, Sequence, Tuple,
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TypeVar, Union)
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from grpc._cython.cygrpc import EOF
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from ._metadata import Metadata
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from ._metadata import MetadataKey
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from ._metadata import MetadataValue
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RequestType = TypeVar('RequestType')
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ResponseType = TypeVar('ResponseType')
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SerializingFunction = Callable[[Any], bytes]
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DeserializingFunction = Callable[[bytes], Any]
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MetadatumType = Tuple[MetadataKey, MetadataValue]
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MetadataType = Union[Metadata, Sequence[MetadatumType]]
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ChannelArgumentType = Sequence[Tuple[str, Any]]
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EOFType = type(EOF)
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DoneCallbackType = Callable[[Any], None]
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RequestIterableType = Union[Iterable[Any], AsyncIterable[Any]]
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ResponseIterableType = AsyncIterable[Any]
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