# Copyright The OpenTelemetry Authors
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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from abc import ABC, abstractmethod
[docs]class Context(typing.Dict[str, object]):
def __setitem__(self, key: str, value: object) -> None:
"""The RuntimeContext interface provides a wrapper for the different
mechanisms that are used to propagate context in Python.
Implementations can be made available via entry_points and
selected through environment variables.
def attach(self, context: Context) -> object:
"""Sets the current `Context` object. Returns a
token that can be used to reset to the previous `Context`.
context: The Context to set.
def get_current(self) -> Context:
"""Returns the current `Context` object."""
def detach(self, token: object) -> None:
"""Resets Context to a previous value
token: A reference to a previous Context.
__all__ = ["Context"]