code: def reader():
      """Return reader for CMSAF CLAAS-2."""
      from satpy._config import config_search_paths
      from satpy.readers import load_reader
  
      reader_configs = config_search_paths(
          os.path.join("readers", "cmsaf-claas2_l2_nc.yaml")
      )
      reader = load_reader(reader_configs)
      return reader
  
imports: import datetime
  import os
  import numpy
  import pytest
  import xarray
  from pyresample.geometry import AreaDefinition
  from satpy.tests.utils import make_dataid
label_desc: Use image node_id 7 for calling a global function with example usage: reader() and returns: reader