mget() — langchain Function Reference

Architecture documentation for the mget() function in encoder_backed.py from the langchain codebase.

Function python LangChainCore MessageInterface

Entity Profile

LangChainCore→ MessageInterface→ mget() — langchain Function Reference

Dependency Diagram

graph TD
  c778e95a_dd7d_9c37_47f8_ed9fd8e02e03["mget()"]
  735a81c9_6f78_0114_db70_cd34c4599651["EncoderBackedStore"]
  c778e95a_dd7d_9c37_47f8_ed9fd8e02e03 -->|defined in| 735a81c9_6f78_0114_db70_cd34c4599651
  style c778e95a_dd7d_9c37_47f8_ed9fd8e02e03 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/storage/encoder_backed.py lines 72–87

    def mget(self, keys: Sequence[K]) -> list[V | None]:
        """Get the values associated with the given keys.

        Args:
            keys: A sequence of keys.

        Returns:
            A sequence of optional values associated with the keys.
            If a key is not found, the corresponding value will be `None`.
        """
        encoded_keys: list[str] = [self.key_encoder(key) for key in keys]
        values = self.store.mget(encoded_keys)
        return [
            self.value_deserializer(value) if value is not None else value
            for value in values
        ]