Convenience wrapper around binwalk.core.module.Modules.help.

    @fd - An object with a write method (e.g., sys.stdout, sys.stderr, etc).

    Returns None.

def show_help(fd=sys.stdout):
    '''
    Convenience wrapper around binwalk.core.module.Modules.help.

    @fd - An object with a write method (e.g., sys.stdout, sys.stderr, etc).

    Returns None.
    '''
    with Modules() as m:
        fd.write(m.help())