code: def _get_aux_data_name_from_dsname(dsname):
      aux_data_name = [key for key in AUX_DATA.keys() if key in dsname]
      if len(aux_data_name) > 0:
          return aux_data_name[0]
  
imports: import logging
  from datetime import datetime
  import dask.array
  import numpy
  from netCDF4 import default_fillvals
  from .netcdf_utils import NetCDF4FileHandler
label_desc: Use image node_id 2 for calling a global function with example usage: _get_aux_data_name_from_dsname(dsname) and returns: aux_data_name