_call() — langchain Function Reference

Architecture documentation for the _call() function in fake_chat_models.py from the langchain codebase.

Function python LangChainCore LanguageModelBase calls 1 called by 1

Entity Profile

LangChainCore→ LanguageModelBase→ _call() — langchain Function Reference

Dependency Diagram

graph TD
  9f4eff8f_319e_f52d_bf3d_acec4dd7c3c7["_call()"]
  2790c9e0_a72e_5aac_c2c7_6702139c50e3["FakeListChatModel"]
  9f4eff8f_319e_f52d_bf3d_acec4dd7c3c7 -->|defined in| 2790c9e0_a72e_5aac_c2c7_6702139c50e3
  eb238386_dfcf_1fbe_4664_773c1f256ad1["_call()"]
  eb238386_dfcf_1fbe_4664_773c1f256ad1 -->|calls| 9f4eff8f_319e_f52d_bf3d_acec4dd7c3c7
  eb238386_dfcf_1fbe_4664_773c1f256ad1["_call()"]
  9f4eff8f_319e_f52d_bf3d_acec4dd7c3c7 -->|calls| eb238386_dfcf_1fbe_4664_773c1f256ad1
  style 9f4eff8f_319e_f52d_bf3d_acec4dd7c3c7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/language_models/fake_chat_models.py lines 76–92

    def _call(
        self,
        *args: Any,
        **kwargs: Any,
    ) -> str:
        """Return the next response in the list.

        Cycle back to the start if at the end.
        """
        if self.sleep is not None:
            time.sleep(self.sleep)
        response = self.responses[self.i]
        if self.i < len(self.responses) - 1:
            self.i += 1
        else:
            self.i = 0
        return response