/
typehints.py
34 lines (27 loc) · 1.21 KB
/
typehints.py
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# Copyright 2008-2015 Nokia Networks
# Copyright 2016- Robot Framework Foundation
#
# 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.
from typing import Any, Callable, TypeVar
T = TypeVar('T', bound=Callable[..., Any])
# Type Alias for objects that are only known at runtime. This should be Used as a
# default value for generic classes that also use `@copy_signature` decorator
KnownAtRuntime = type(object)
def copy_signature(target: T) -> Callable[..., T]:
"""A decorator that applies the signature of `T` to any function that it decorates
see https://github.com/python/typing/issues/270#issuecomment-555966301 for source
and discussion.
"""
def decorator(func):
return func
return decorator