code: def from_dynacRepr(cls, pynacRepr):
          
          pynacList = pynacRepr[1][0]
  
          L = float(pynacList[3])
          TTF = float(pynacList[4])
          TTFprime = float(pynacList[5])
          TTFprimeprime = float(pynacList[13])
          EField = float(pynacList[10])
          phase = float(pynacList[11])
          F = float(pynacList[14])
          atten = float(pynacList[15])
  
          gap = cls(L, TTF, TTFprime, TTFprimeprime, EField, phase, F, atten)
          gap.gapID = Param(val = int(pynacList[0]), unit = None)
          gap.energy = Param(val = float(pynacList[1]), unit = 'MeV')
          gap.beta = Param(val = float(pynacList[2]), unit = None)
          gap.S = Param(val = float(pynacList[6]), unit = None)
          gap.SP = Param(val = float(pynacList[7]), unit = None)
          gap.quadLength = Param(val = float(pynacList[8]), unit = 'cm')
          gap.quadStrength = Param(val = float(pynacList[9]), unit = 'kG/cm')
          gap.accumLen = Param(val = float(pynacList[12]), unit = 'cm')
  
          return gap
docs: Construct a ``AccGap`` instance from the Pynac lattice element