class_docstr: File handler for HSAF grib files.
class_docstr_tok: ["File","handler","for","HSAF","grib","files","."]
code: def _get_message(self, idx):
      with pygrib.open(self.filename) as grib_file:
          msg = grib_file.message(idx)
          return msg
  
file_path: satpy/satpy/readers/hsaf_grib.py
imports: import logging
  from datetime import datetime, timedelta
  import dask.array
  import numpy
  import pygrib
  import xarray
  from pyresample import geometry
  from satpy.readers.file_handlers import BaseFileHandler
  from satpy.utils import get_legacy_chunk_size
label_desc: Use image node_id 7 for calling the HSAFFileHandler obj's underlying member method code with example usage: obj._get_message(idx) and returns: msg