a2a.utils.message module

Utility functions for creating and handling A2A Message objects.

a2a.utils.message.get_message_text(message: Message, delimiter: str = '\n') → str

Extracts and joins all text content from a Message’s parts.

Parameters:

  • message – The Message object.

  • delimiter – The string to use when joining text from multiple TextParts.

Returns:

A single string containing all text content, or an empty string if no text parts are found.

a2a.utils.message.new_agent_parts_message(parts: list[Part], context_id: str | None = None, task_id: str | None = None) → Message

Creates a new agent message containing a list of Parts.

Parameters:

  • parts – The list of Part objects for the message content.

  • context_id – The context ID for the message.

  • task_id – The task ID for the message.

Returns:

A new Message object with role ‘agent’.

a2a.utils.message.new_agent_text_message(text: str, context_id: str | None = None, task_id: str | None = None) → Message

Creates a new agent message containing a single TextPart.

Parameters:

  • text – The text content of the message.

  • context_id – The context ID for the message.

  • task_id – The task ID for the message.

Returns:

A new Message object with role ‘agent’.