Initiates a phone call.
Downloads a file.
Sends a message back to the bot as a simple string.
Sends a message back to the bot with additional metadata.
Opens an application.
Opens a URL in the default browser.
Plays an audio file.
Plays a video file.
Sends a message back to the bot with additional data.
Displays an image.
Initiates a sign-in process.
Enum representing the types of actions.