code: def test_C3dAffineTool_inputs():
      input_map = dict(
          args=dict(
              argstr="%s",
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          fsl2ras=dict(
              argstr="-fsl2ras",
              position=4,
          ),
          itk_transform=dict(
              argstr="-oitk %s",
              hash_files=False,
              position=5,
          ),
          reference_file=dict(
              argstr="-ref %s",
              extensions=None,
              position=1,
          ),
          source_file=dict(
              argstr="-src %s",
              extensions=None,
              position=2,
          ),
          transform_file=dict(
              argstr="%s",
              extensions=None,
              position=3,
          ),
      )
      inputs = C3dAffineTool.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_C3dAffineTool_inputs() without return types