docs: def parser(self):
          """
          Creates a parser for the method based on the documentation.
          
          :return     <OptionParser>
          """
          usage = self.usage()
          if self.__doc__:
              usage += '\n' + nstr(self.__doc__)
  
          parse = PARSER_CLASS(usage=usage)
  
          shorts = {v: k for k, v in self.short_keys.items()}
          for key, default in self.cmd_opts.items():
              # default key, cannot be duplicated
              if key == 'help':
                  continue
  
              try:
                  short = '-' + shorts[key]
              except KeyError:
                  short = ''
  
              if default is True:
                  action = 'store_false'
              elif default is False:
                  action = 'store_true'
              else:
                  action = 'store'
  
              # add the option
              parse.add_option(short, '--%s' % key, action=action, default=default)
  
          return parse