code: def test_Norm_inputs():
      input_map = dict(
          args=dict(
              argstr="%s",
          ),
          clamp=dict(
              argstr="-clamp",
              usedefault=True,
          ),
          clobber=dict(
              argstr="-clobber",
              usedefault=True,
          ),
          cutoff=dict(
              argstr="-cutoff %s",
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          input_file=dict(
              argstr="%s",
              extensions=None,
              mandatory=True,
              position=-2,
          ),
          lower=dict(
              argstr="-lower %s",
          ),
          mask=dict(
              argstr="-mask %s",
              extensions=None,
          ),
          out_ceil=dict(
              argstr="-out_ceil %s",
          ),
          out_floor=dict(
              argstr="-out_floor %s",
          ),
          output_file=dict(
              argstr="%s",
              extensions=None,
              genfile=True,
              hash_files=False,
              name_source=["input_file"],
              name_template="%s_norm.mnc",
              position=-1,
          ),
          output_threshold_mask=dict(
              argstr="-threshold_mask %s",
              extensions=None,
              hash_files=False,
              name_source=["input_file"],
              name_template="%s_norm_threshold_mask.mnc",
          ),
          threshold=dict(
              argstr="-threshold",
          ),
          threshold_blur=dict(
              argstr="-threshold_blur %s",
          ),
          threshold_bmt=dict(
              argstr="-threshold_bmt",
          ),
          threshold_perc=dict(
              argstr="-threshold_perc %s",
          ),
          upper=dict(
              argstr="-upper %s",
          ),
      )
      inputs = Norm.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_Norm_inputs() without return types