{'fermion': <class pyfeyn.lines.Line at 0xb71729bc>,
'gaugino': <class pyfeyn.lines.Gaugino at 0xb7172b0c>,
'gluino': <class pyfeyn.lines.Gluino at 0xb7172b3c>,
'gluon': <class pyfeyn.lines.Gluon at 0xb7172a7c>,
'graviton': <class pyfeyn.lines.Graviton at 0xb7172adc>,
'higgs': <class pyfeyn.lines.Scalar at 0xb7172a1c>,
'photon': <class pyfeyn.lines.Vector at 0xb7172aac>}