code: def batch_insert(self, records, typecast=False):
          
          return self._batch_request(self.insert, records)
docs: Calls :any:`insert` repetitively, following set API Rate Limit (5/sec)
          To change the rate limit use ``airtable.API_LIMIT = 0.2``
          (5 per second)
  
          >>> records = [{'Name': 'John'}, {'Name': 'Marc'}]
          >>> airtable.batch_insert(records)
  
          Args:
              records(``list``): Records to insert
              typecast(``boolean``): Automatic data conversion from string values.
  
          Returns:
              records (``list``): list of added records