code: def _create_coarsest_finest_area_def(shape, extents):
      from pyresample import AreaDefinition
  
      proj_str = "+proj=lcc +datum=WGS84 +ellps=WGS84 +lon_0=-95. +lat_0=25 +lat_1=25 +units=m +no_defs"
      area_def = AreaDefinition(
          "test",
          "test",
          "test",
          proj_str,
          shape[1],
          shape[0],
          extents,
      )
      return area_def
  
imports: import math
  import numpy
  import pytest
  import xarray
  from dask import array
  from satpy import Scene
  from satpy.dataset.dataid import default_id_keys_config
  from satpy.tests.utils import FAKE_FILEHANDLER_END, FAKE_FILEHANDLER_START, make_cid, make_dataid
label_desc: Use image node_id 2 for calling a global function with example usage: _create_coarsest_finest_area_def(shape, extents) and returns: area_def