Package-level declarations

A message format that presents selectable options to the user, rendered as quick replies, buttons, or a carousel.

Message format that contains the response to a choice.

Message format that contains choices.

Message format that contains the response to a choice.

Defines the structural format of a message's content, such as plain text, choices, or a form.

Represents the display format for a progress indicator message, such as a typing indicator or loading state.

A message format containing non-interactive content such as text, attachments, rich links, or embedded web views.