code: def ratio(fullname1, fullname2, strictness='default', options=None):
      
  
      if options is not None:
          settings = deepcopy(SETTINGS[strictness])
          deep_update_dict(settings, options)
      else:
          settings = SETTINGS[strictness]
  
      name1 = Name(fullname1)
      name2 = Name(fullname2)
  
      return name1.ratio_deep_compare(name2, settings)
docs: Takes two names and returns true if they describe the same person.
      Uses difflib's sequence matching on a per-field basis for names
  
      :param string fullname1: first human name
      :param string fullname2: second human name
      :param string strictness: strictness settings to use
      :param dict options: custom strictness settings updates
      :return int: sequence ratio match (out of 100)