class_docstr: Reader class for SEVIRI L2 products in GRIB format.
docstr: Return the area definition for a dataset.
docstr_tok: ["Return","the","area","definition","for","a","dataset","."]
code: def get_area_def(self, dataset_id):
      """Return the area definition for a dataset."""
      self._area_dict["column_step"] = dataset_id["resolution"]
      self._area_dict["line_step"] = dataset_id["resolution"]
  
      area_extent = calculate_area_extent(self._area_dict)
  
      # Call the get_area_definition function to obtain the area
      area_def = get_area_definition(self._pdict, area_extent)
  
      return area_def
  
imports: import logging
  from datetime import timedelta
  import dask.array
  import numpy
  import xarray
  from satpy.readers._geos_area import get_area_definition, get_geos_area_naming
  from satpy.readers.eum_base import get_service_mode
  from satpy.readers.file_handlers import BaseFileHandler
  from satpy.readers.seviri_base import PLATFORM_DICT, REPEAT_CYCLE_DURATION, calculate_area_extent
  from satpy.utils import get_legacy_chunk_size
label_desc: Use image node_id 4 for calling the SeviriL2GribFileHandler obj's underlying member method code with example usage: obj.get_area_def(dataset_id) and returns: area_def