code: def get_leads(self, *guids, **options):
          
          original_options = options
          options = self.camelcase_search_options(options.copy())
          params = {}
          for i in xrange(len(guids)):
              params['guids[%s]'%i] = guids[i]
          for k in options.keys():
              if k in SEARCH_OPTIONS:
                  params[k] = options[k]
                  del options[k]
          leads = self._call('list/', params, **options)
          self.log.info("retrieved %s leads through API ( %soptions=%s )" % 
                  (len(leads), guids and 'guids=%s, '%guids or '', original_options))
          return leads
docs: Supports all the search parameters in the API as well as python underscored variants