def METHOD_NAME(self) -> Any:
    self.input_file = open(self.table_lineage_file_location, 'r')
    lineage_event = (json.loads(line) for line in self.input_file)
    table_lineage = (TableLineage(table_key=lineage['input'],
                                  downstream_deps=[lineage['output']])
                     for lineage in self._extract_dataset_info(lineage_event))
    self._iter = table_lineage