code: def test_MRMultiply_inputs():
      input_map = dict(
          args=dict(
              argstr="%s",
          ),
          debug=dict(
              argstr="-debug",
              position=1,
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          in_files=dict(
              argstr="%s",
              mandatory=True,
              position=-2,
          ),
          out_filename=dict(
              argstr="%s",
              extensions=None,
              genfile=True,
              position=-1,
          ),
          quiet=dict(
              argstr="-quiet",
              position=1,
          ),
      )
      inputs = MRMultiply.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_MRMultiply_inputs() without return types