Making an option by hand is not defined, it must be made by the App class

Get the prefix command status

Standard print function, this one is set by default

Standard constructor, can set title and print function

A dictionary that also can read headers given a tag expression. TODO: might have gone overboard on this one, could maybe be two func

Specify whether the Validator is active or not

Add an existing option to the Option_group

Add an existing subcommand to be a member of an option_group

Set the value of allow_extra_args which allows extra value arguments on the flag or option to be included with each instance

Specify the application index of a validator

Set the value of callback priority which controls when the callback function should be called relative to other parsing operations the default This is

Get the callback function

Capture the default value from the original value (if it can be captured)

clear all the aliases of the current App

Get the status of allow extras

Allow in a configuration file

Set a capture function for the default. Mostly used by App.

Set the default value string representation (does not change the contained value)

set a delimiter character to split up single arguments to treat as multiple inputs

Set the description

Disable flag overrides values, e.g. --flag=<value> is not allowed