Optional ReadonlyactionThe action callback, if any.
Optional action button label.
Auto-dismiss duration in milliseconds. 0 = no auto-dismiss. Defaults to 4000.
Whether the toast is currently exiting (for animation).
ReadonlyidUnique ID for tracking.
The message text to display.
Screen position. Defaults to "top-right".
Severity level. Defaults to "info".
Optional title shown above the message.
Runtime state of a single toast instance.