class_docstr: Handler for the regular band channels.
docstr: Get the relative indices of the desired channel.
docstr_tok: ["Get","the","relative","indices","of","the","desired","channel","."]
code: def _get_band_index(self, var_attrs, band_name):
      """Get the relative indices of the desired channel."""
      band_names = var_attrs["band_names"].split(",")
      index = band_names.index(band_name)
      return index
  
imports: import logging
  import numpy
  import xarray
  from satpy.readers.hdf4_utils import from_sds
  from satpy.readers.hdfeos_base import HDFEOSBaseFileReader, HDFEOSGeoReader
label_desc: Use image node_id 4 for calling the HDFEOSBandReader obj's underlying member method code with example usage: obj._get_band_index(var_attrs, band_name) and returns: index