code: def test_Gennlxfm_inputs():
      input_map = dict(
          args=dict(
              argstr="%s",
          ),
          clobber=dict(
              argstr="-clobber",
              usedefault=True,
          ),
          environ=dict(
              nohash=True,
              usedefault=True,
          ),
          ident=dict(
              argstr="-ident",
          ),
          like=dict(
              argstr="-like %s",
              extensions=None,
          ),
          output_file=dict(
              argstr="%s",
              extensions=None,
              genfile=True,
              hash_files=False,
              name_source=["like"],
              name_template="%s_gennlxfm.xfm",
              position=-1,
          ),
          step=dict(
              argstr="-step %s",
          ),
          verbose=dict(
              argstr="-verbose",
          ),
      )
      inputs = Gennlxfm.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_Gennlxfm_inputs() without return types