class PromptComponent(QueryComponent):
"""Prompt component."""
prompt: BasePromptTemplate = Field(..., description="Prompt")
llm: Optional[BaseLLM] = Field(
default=None, description="LLM to use for formatting prompt."
)
format_messages: bool = Field(
default=False,
description="Whether to format the prompt into a list of chat messages.",
)
class Config:
arbitrary_types_allowed = True
def set_callback_manager(self, callback_manager: Any) -> None:
"""Set callback manager."""
def _validate_component_inputs(self, input: Dict[str, Any]) -> Dict[str, Any]:
"""Validate component inputs during run_component."""
keys = list(input.keys())
for k in keys:
input[k] = validate_and_convert_stringable(input[k])
return input
def _run_component(self, **kwargs: Any) -> Any:
"""Run component."""
if self.format_messages:
output: Union[str, List[ChatMessage]] = self.prompt.format_messages(
llm=self.llm, **kwargs
)
else:
output = self.prompt.format(llm=self.llm, **kwargs)
return {"prompt": output}
async def _arun_component(self, **kwargs: Any) -> Any:
"""Run component."""
# NOTE: no native async for prompt
return self._run_component(**kwargs)
@property
def input_keys(self) -> InputKeys:
"""Input keys."""
return InputKeys.from_keys(
set(self.prompt.template_vars) - set(self.prompt.kwargs)
)
@property
def output_keys(self) -> OutputKeys:
"""Output keys."""
return OutputKeys.from_keys({"prompt"})