<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_parser():
 """ This is a helper method to return an argparse parser, to be used with the Sphinx argparse plugin for documentation. """

    manager = cfg.build_manager()
    source = cfg.build_command_line_source(prog='prospector', description=None)
    return source.build_parser(manager.settings, None)