code: def fromXML(self, name, attrs, content, ttFont):
      if name == "Axis":
          axis = Axis()
          axis.fromXML(name, attrs, content, ttFont)
          self.axes.append(axis)
      elif name == "NamedInstance":
          instance = NamedInstance()
          instance.fromXML(name, attrs, content, ttFont)
          self.instances.append(instance)
  
imports: from fontTools.misc import sstruct
  from fontTools.misc.fixedTools import fixedToFloat, floatToFixed, floatToFixedToStr, strToFixedToFloat
  from fontTools.misc.textTools import Tag, bytesjoin, safeEval
  from fontTools.ttLib import TTLibError
  from .None import DefaultTable
  import struct
label_desc: Use image node_id 5 for calling the table__f_v_a_r obj's underlying member method code with example usage: obj.fromXML(name, attrs, content, ttFont) without return types