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- # Copyright The OpenTelemetry Authors
- # SPDX-License-Identifier: Apache-2.0
- from opentelemetry.context import Context
- from opentelemetry.util.types import Attributes
- class Observation:
- """A measurement observed in an asynchronous instrument
- Return/yield instances of this class from asynchronous instrument callbacks.
- Args:
- value: The float or int measured value
- attributes: The measurement's attributes
- context: The measurement's context
- """
- def __init__(
- self,
- value: int | float,
- attributes: Attributes = None,
- context: Context | None = None,
- ) -> None:
- self._value = value
- self._attributes = attributes
- self._context = context
- @property
- def value(self) -> float | int:
- return self._value
- @property
- def attributes(self) -> Attributes:
- return self._attributes
- @property
- def context(self) -> Context | None:
- return self._context
- def __eq__(self, other: object) -> bool:
- return (
- isinstance(other, Observation)
- and self.value == other.value
- and self.attributes == other.attributes
- and self.context == other.context
- )
- def __repr__(self) -> str:
- return f"Observation(value={self.value}, attributes={self.attributes}, context={self.context})"
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