code: def test_CiftiSmooth_inputs():
      input_map = dict(
          args=dict(
              argstr="%s",
          ),
          cerebellum_corrected_areas=dict(
              argstr="cerebellum-corrected-areas %s",
              extensions=None,
              position=10,
              requires=["cerebellum_surf"],
          ),
          cerebellum_surf=dict(
              argstr="-cerebellum-surface %s",
              extensions=None,
              position=9,
          ),
          cifti_roi=dict(
              argstr="-cifti-roi %s",
              extensions=None,
              position=11,
          ),
          direction=dict(
              argstr="%s",
              mandatory=True,
              position=3,
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          fix_zeros_surf=dict(
              argstr="-fix-zeros-surface",
              position=13,
          ),
          fix_zeros_vol=dict(
              argstr="-fix-zeros-volume",
              position=12,
          ),
          in_file=dict(
              argstr="%s",
              extensions=None,
              mandatory=True,
              position=0,
          ),
          left_corrected_areas=dict(
              argstr="-left-corrected-areas %s",
              extensions=None,
              position=6,
          ),
          left_surf=dict(
              argstr="-left-surface %s",
              extensions=None,
              mandatory=True,
              position=5,
          ),
          merged_volume=dict(
              argstr="-merged-volume",
              position=14,
          ),
          out_file=dict(
              argstr="%s",
              extensions=None,
              keep_extension=True,
              name_source=["in_file"],
              name_template="smoothed_%s.nii",
              position=4,
          ),
          right_corrected_areas=dict(
              argstr="-right-corrected-areas %s",
              extensions=None,
              position=8,
          ),
          right_surf=dict(
              argstr="-right-surface %s",
              extensions=None,
              mandatory=True,
              position=7,
          ),
          sigma_surf=dict(
              argstr="%s",
              mandatory=True,
              position=1,
          ),
          sigma_vol=dict(
              argstr="%s",
              mandatory=True,
              position=2,
          ),
      )
      inputs = CiftiSmooth.input_spec()
  
      for key, metadata in list(input_map.items()):
          for metakey, value in list(metadata.items()):
              assert getattr(inputs.traits()[key], metakey) == value
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_CiftiSmooth_inputs() without return types