code: def test_MCFLIRT_inputs():
      input_map = dict(
          args=dict(
              argstr="%s",
          ),
          bins=dict(
              argstr="-bins %d",
          ),
          cost=dict(
              argstr="-cost %s",
          ),
          dof=dict(
              argstr="-dof %d",
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          in_file=dict(
              argstr="-in %s",
              extensions=None,
              mandatory=True,
              position=0,
          ),
          init=dict(
              argstr="-init %s",
              extensions=None,
          ),
          interpolation=dict(
              argstr="-%s_final",
          ),
          mean_vol=dict(
              argstr="-meanvol",
          ),
          out_file=dict(
              argstr="-out %s",
              extensions=None,
              genfile=True,
              hash_files=False,
          ),
          output_type=dict(),
          ref_file=dict(
              argstr="-reffile %s",
              extensions=None,
          ),
          ref_vol=dict(
              argstr="-refvol %d",
          ),
          rotation=dict(
              argstr="-rotation %d",
          ),
          save_mats=dict(
              argstr="-mats",
          ),
          save_plots=dict(
              argstr="-plots",
          ),
          save_rms=dict(
              argstr="-rmsabs -rmsrel",
          ),
          scaling=dict(
              argstr="-scaling %.2f",
          ),
          smooth=dict(
              argstr="-smooth %.2f",
          ),
          stages=dict(
              argstr="-stages %d",
          ),
          stats_imgs=dict(
              argstr="-stats",
          ),
          use_contour=dict(
              argstr="-edge",
          ),
          use_gradient=dict(
              argstr="-gdt",
          ),
      )
      inputs = MCFLIRT.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_MCFLIRT_inputs() without return types