code: def _expected_area():
      proj_param = "EPSG:4326"
  
      return geometry.AreaDefinition(
          "gridded_modis",
          "A gridded L3 MODIS area",
          "longlat",
          proj_param,
          7200,
          3600,
          (-180, -90, 180, 90),
      )
  
file_path: satpy/satpy/tests/reader_tests/modis_tests/test_modis_l3.py
imports: from __future__ import annotations
  import dask.array
  import numpy
  import pytest
  from pyresample import geometry
  from pytest_lazyfixture import lazy_fixture
  from satpy import Scene, available_readers
label_desc: Use image node_id 1 for calling a global function with example usage: _expected_area() and returns: geometry