code: def test_color_missing_with_nan(composite_mapper):
      assert isinstance(composite_mapper.color_missing_with_nan, bool)
  
imports: import pytest
  from vtkmodules.vtkCommonCore import vtkLookupTable
  import pyvista
  from pyvista.plotting.composite_mapper import BlockAttributes, CompositePolyDataMapper
label_desc: Use image node_id 6 for calling a global function with example usage: test_color_missing_with_nan(composite_mapper) without return types