Method add_usage

IPython/core/magic_arguments.py:102–103

(self, usage, actions, groups, prefix="::\n\n  %")

    # Override the default prefix ('usage') to our % magic escape,
    # in a code block.
    def add_usage(self, usage, actions, groups, prefix="::\n\n  %"):
        super(MagicHelpFormatter, self).add_usage(usage, actions, groups, prefix)

class MagicArgumentParser(argparse.ArgumentParser):
    """ An ArgumentParser tweaked for use by IPython magics.