code: def test_EpiReg_outputs():
      output_map = dict(
          epi2str_inv=dict(
              extensions=None,
          ),
          epi2str_mat=dict(
              extensions=None,
          ),
          fmap2epi_mat=dict(
              extensions=None,
          ),
          fmap2str_mat=dict(
              extensions=None,
          ),
          fmap_epi=dict(
              extensions=None,
          ),
          fmap_str=dict(
              extensions=None,
          ),
          fmapmag_str=dict(
              extensions=None,
          ),
          fullwarp=dict(
              extensions=None,
          ),
          out_1vol=dict(
              extensions=None,
          ),
          out_file=dict(
              extensions=None,
          ),
          seg=dict(
              extensions=None,
          ),
          shiftmap=dict(
              extensions=None,
          ),
          wmedge=dict(
              extensions=None,
          ),
          wmseg=dict(
              extensions=None,
          ),
      )
      outputs = EpiReg.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_EpiReg_outputs() without return types