code: def __init__(self):
      self._df: Dict[str, pd.DataFrame] = {}
      self.mmtf = ""
      self.header = ""
      self.code = ""
      self._get_dict = {}
      self.mmtf_path = ""
  
imports: from __future__ import annotations
  import os
  import copy
  import gzip
  import warnings
  from string import ascii_uppercase
  from typing import Any, Dict, List, Union
  from warnings import warn
  import numpy
  import pandas
  from looseversion import LooseVersion
  from mmtf import MMTFDecoder, MMTFEncoder, fetch, parse, parse_gzip
  from biopandas.constants import protein_letters_3to1_extended
  from ..pdb.engines import amino3to1dict, pdb_df_columns, pdb_records
label_desc: Use image node_id 1 to create a new PandasMmtf object from inherited base classes: object with example: obj = PandasMmtf()