Parameters
- __namedParameters: { 
 llm: LanguageModelLike;
 prompt: BasePromptTemplate;
 documentPrompt?: any;
 documentSeparator?: string;
 outputParser?: any;
 }- llm: LanguageModelLike
- prompt: BasePromptTemplate
- OptionaldocumentPrompt?: any
- OptionaldocumentSeparator?: string
- OptionaloutputParser?: any
 
Returns Promise<any>
An LCEL Runnable chain.
Expects a dictionary as input with a list of Documents being passed under
the "context" key.
Return type depends on the output_parser used.
Create a chain that passes a list of documents to a model.