class_docstr: File handler for Satpy's CF netCDF files.
code: def _compare_attr(self, _ds_id_dict, key, data):
      if key in ["name", "modifiers"]:
          return True
      elif key == "wavelength":
          return _ds_id_dict[key] == WavelengthRange.from_cf(
              data.attrs[key]
          )
      else:
          return data.attrs[key] == _ds_id_dict[key]
  
imports: import itertools
  import json
  import logging
  import xarray
  from pyresample import AreaDefinition
  from satpy.dataset.dataid import WavelengthRange
  from satpy.readers.file_handlers import BaseFileHandler
  from satpy.utils import get_legacy_chunk_size
label_desc: Use image node_id 11 for calling the SatpyCFFileHandler obj's underlying member method code with example usage: obj._compare_attr(_ds_id_dict, key, data) and returns: True, unknown, unknown