code: def test_RobustRegister_outputs():
      output_map = dict(
          half_source=dict(
              extensions=None,
          ),
          half_source_xfm=dict(
              extensions=None,
          ),
          half_targ=dict(
              extensions=None,
          ),
          half_targ_xfm=dict(
              extensions=None,
          ),
          half_weights=dict(
              extensions=None,
          ),
          out_reg_file=dict(
              extensions=None,
          ),
          registered_file=dict(
              extensions=None,
          ),
          weights_file=dict(
              extensions=None,
          ),
      )
      outputs = RobustRegister.output_spec()
  
      for key, metadata in list(output_map.items()):
          for metakey, value in list(metadata.items()):
              assert getattr(outputs.traits()[key], metakey) == value
  
label_desc: Use image node_id 2 for calling a global function with example usage: test_RobustRegister_outputs() without return types