code: def get_fake_dataset_info():
      """Create fake dataset info."""
      return {
          "units": "units",
          "wavelength": "wavelength",
          "standard_name": "standard_name",
      }
  
file_path: satpy/satpy/tests/reader_tests/test_seviri_l1b_hrit_setup.py
imports: from datetime import datetime
  from unittest import mock
  import numpy
  from satpy.readers.seviri_l1b_hrit import HRITMSGFileHandler, HRITMSGPrologueFileHandler
  from satpy.tests.reader_tests.test_seviri_base import ORBIT_POLYNOMIALS
label_desc: Use image node_id 8 for calling a global function with example usage: get_fake_dataset_info() and returns: dict