on_text() — langchain Function Reference

Architecture documentation for the on_text() function in manager.py from the langchain codebase.

Function python Observability CallbackManager calls 2 called by 1

Entity Profile

Observability→ CallbackManager→ on_text() — langchain Function Reference

Dependency Diagram

graph TD
  67a5353e_2a29_9589_7adc_3d2054f77ce2["on_text()"]
  de4f02df_e081_b738_0c6d_90fdd2ae605d["AsyncRunManager"]
  67a5353e_2a29_9589_7adc_3d2054f77ce2 -->|defined in| de4f02df_e081_b738_0c6d_90fdd2ae605d
  40737de9_fdbb_ebe0_d5f1_fe2a91895e24["on_text()"]
  40737de9_fdbb_ebe0_d5f1_fe2a91895e24 -->|calls| 67a5353e_2a29_9589_7adc_3d2054f77ce2
  40737de9_fdbb_ebe0_d5f1_fe2a91895e24["on_text()"]
  67a5353e_2a29_9589_7adc_3d2054f77ce2 -->|calls| 40737de9_fdbb_ebe0_d5f1_fe2a91895e24
  3a243d21_72d1_dca9_f7be_acbb482b9f86["ahandle_event()"]
  67a5353e_2a29_9589_7adc_3d2054f77ce2 -->|calls| 3a243d21_72d1_dca9_f7be_acbb482b9f86
  style 67a5353e_2a29_9589_7adc_3d2054f77ce2 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/manager.py lines 600–622

    async def on_text(
        self,
        text: str,
        **kwargs: Any,
    ) -> None:
        """Run when a text is received.

        Args:
            text: The received text.
            **kwargs: Additional keyword arguments.
        """
        if not self.handlers:
            return
        await ahandle_event(
            self.handlers,
            "on_text",
            None,
            text,
            run_id=self.run_id,
            parent_run_id=self.parent_run_id,
            tags=self.tags,
            **kwargs,
        )