code: def test_BBRegister_outputs():
      output_map = dict(
          init_cost_file=dict(),
          min_cost_file=dict(),
          out_fsl_file=dict(),
          out_lta_file=dict(),
          out_reg_file=dict(),
          registered_file=dict(),
      )
      outputs = BBRegister.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_BBRegister_outputs() without return types