code: def modis_l2_imapp_mask_byte1_geo_files(
      modis_l2_imapp_mask_byte1_file, modis_l1b_nasa_mod03_file
  ) -> list[str]:
      """Create the IMAPP mask_byte1 and geo HDF4 files."""
      return modis_l2_imapp_mask_byte1_file + modis_l1b_nasa_mod03_file
  
imports: from __future__ import annotations
  from datetime import datetime, timedelta
  from typing import Optional
  import numpy
  import pytest
  from pyhdf.SD import SD, SDC
label_desc: Use image node_id 41 for calling a global function with example usage: modis_l2_imapp_mask_byte1_geo_files(modis_l2_imapp_mask_byte1_file, modis_l1b_nasa_mod03_file) and returns: unknown