Callback for collection of a single text input attribute from a user.
The text to be used as the default text displayed with the prompt.
Get the prompt for this callback.
Return the unique id for this callback. The id only available with Callback that using PageCallback
Return the raw content of the Callback.
Get the first value for input
Get the value for input
Return the type of the Callback, the type name should align with the Callback type returned from AM
Sets the value of the Callback
Set the first value for input
Set the value for the input.
Set the text.