code: def _is_georef_offset_present(date):
      # Reference: Product User Manual, section 3.
      # https://doi.org/10.5676/EUM_SAF_CM/CLAAS/V002_01
      return date < datetime.date(2017, 12, 6)
  
file_path: satpy/satpy/readers/cmsaf_claas2.py
imports: import datetime
  from satpy.resample import get_area_def
  from .netcdf_utils import NetCDF4FileHandler
label_desc: Use image node_id 1 for calling a global function with example usage: _is_georef_offset_present(date) and returns: unknown