code: def add_record_raw(self, rec):
      if len(rec) != len(self._columns):
          raise WrongArgumentError(
              f"Record length mismatch columns length: {len(rec)} != {len(self.columns)}"
          )
      self._records.append(rec)
  
imports: import copy
  import pandas
  from mindsdb.api.executor.exceptions import WrongArgumentError
label_desc: Use image node_id 17 for calling the ResultSet obj's underlying member method code with example usage: obj.add_record_raw(rec) without return types