class_docstr: Test VISSR file handler.
class_docstr_tok: ["Test","VISSR","file","handler","."]
docstr: Mask space pixels.
docstr_tok: ["Mask","space","pixels","."]
code: def mask_space(self, request):
      """Mask space pixels."""
      return request.param
  
imports: import datetime
  import gzip
  import fsspec
  import numpy
  import pytest
  import xarray
  from pyresample.geometry import AreaDefinition
  import satpy.tests.reader_tests.gms.test_gms5_vissr_data
  from satpy.readers import FSFile
  from satpy.tests.reader_tests.utils import get_jit_methods, skip_numba_unstable_if_missing
  from satpy.tests.utils import make_dataid
label_desc: Use image node_id 3 for calling the TestFileHandler obj's underlying member method code with example usage: obj.mask_space(request) and returns: request