class CLIMessengerInterface(intro=None, prompt_request='request: ', prompt_response='response: ', out_descriptor=None)

Bases: PollingMessengerInterface

Command line message interface is the default message interface, communicating with user via STDIN/STDOUT. This message interface can maintain dialog with one user at a time only.

supported_request_attachment_types = {}

supported_response_attachment_types = {}

_request()

Method used for sending users request for their input.

Return type:

List[Tuple[Message, Any]]

Returns:

A list of tuples: user inputs and context ids (any user ids) associated with the inputs.

_respond(responses)

Method used for sending users responses for their last input.

Parameters:

responses (List[Context]) – A list of contexts, representing dialogs with the users; last_response, id and some dialog info can be extracted from there.

async connect(pipeline_runner, **kwargs)

The CLIProvider generates new dialog id used to user identification on each connect call.

Parameters:

• pipeline_runner (PipelineRunnerFunction) – A function that should process user request and return context; usually it’s a _run_pipeline() function.

• **kwargs – argument, added for compatibility with super class, it shouldn’t be used normally.