llm: Runnable,
    prompt: BasePromptTemplate,
    *,
    output_parser: Optional[Union[BaseOutputParser, BaseGenerationOutputParser]] = None,
    **kwargs: Any,
) -> Runnable:
    """Create a runnable that uses an Ernie function to get a structured output.
    Args:
        output_schema: Either a dictionary or pydantic.BaseModel class. If a dictionary
            is passed in, it's assumed to already be a valid JsonSchema.
            For best results, pydantic.BaseModels should have docstrings describing what
            the schema represents and descriptions for the parameters.
        llm: Language model to use, assumed to support the Ernie function-calling API.
        prompt: BasePromptTemplate to pass to the model.
        output_parser: BaseLLMOutputParser to use for parsing model outputs. By default
            will be inferred from the function types. If pydantic.BaseModels are passed
            in, then the OutputParser will try to parse outputs using those. Otherwise
            model outputs will simply be parsed as JSON.
    Returns:
        A runnable sequence that will pass the given function to the model when run.
    Example:
        .. code-block:: python
                from typing import Optional
                from langchain.chains.ernie_functions import create_structured_output_chain
                from langchain.chat_models import ErnieBotChat
                from langchain.prompts import ChatPromptTemplate
                from langchain.pydantic_v1 import BaseModel, Field
                class Dog(BaseModel):
                    \"\"\"Identifying information about a dog.\"\"\"
                    name: str = Field(..., description="The dog's name")
                    color: str = Field(..., description="The dog's color")