code: def _reset_id_table(self, mapping):
          
          if not hasattr(self, "_initialized_id_tables"):
              self._initialized_id_tables = set()
          id_table_name = "{}_sf_ids".format(mapping["table"])
          if id_table_name not in self._initialized_id_tables:
              if id_table_name in self.metadata.tables:
                  self.metadata.remove(self.metadata.tables[id_table_name])
              id_table = Table(
                  id_table_name,
                  self.metadata,
                  Column("id", Unicode(255), primary_key=True),
                  Column("sf_id", Unicode(18)),
              )
              if id_table.exists():
                  id_table.drop()
              id_table.create()
              self._initialized_id_tables.add(id_table_name)
          return id_table_name
docs: Create an empty table to hold the inserted SF Ids