code: def options(self, parser, env):
          
          Plugin.options(self, parser, env)
          parser.add_option('--xcoverage-file', action='store',
                            default=env.get('NOSE_XCOVER_FILE', 'coverage.xml'),
                            dest='xcoverage_file',
                            metavar="FILE",
                            help='Path to xml coverage report.'
                            'Default is coverage.xml in the working directory. '
                            '[NOSE_XCOVERAGE_FILE]')
          parser.add_option('--xcoverage-to-stdout', action='store',
                            default=env.get('NOSE_XCOVER_TO_STDOUT', True),
                            dest='xcoverage_to_stdout',
                            help='Print coverage information to stdout.'
                            'Default is True (output coverage information to stdout). '
                            '[NOSE_XCOVER_TO_STDOUT]')
docs: Add options to command line.