prompt_stack# contents action_call_delta_message_content str() action_call_message_content from_deltas(deltas)classmethod action_result_message_content from_deltas(deltas)classmethod audio_delta_message_content Attributes audio_message_content from_deltas(deltas)classmethod base_delta_message_content base_message_content bool() len() str() from_deltas(deltas)abstractmethodclassmethod to_text() generic_message_content from_deltas(deltas)classmethod image_message_content from_deltas(deltas)classmethod text_delta_message_content text_message_content from_deltas(deltas)classmethod messages base_message Usage is_assistant() is_system() is_user() delta_message message init(content, **kwargs) str() get_content_type(content_type) has_all_content_type(content_type) has_any_content_type(content_type) is_text() to_artifact(meta=None) to_text() prompt_stack __to_message_content(artifact) add_assistant_message(artifact) add_message(artifact, role) add_system_message(artifact) add_user_message(artifact) from_artifact(artifact)classmethod to_output_json_schema(schema_id=‘Output Format’)