code: def fromXML(self, name, attrs, content, ttFont):
      if name == "version":
          self.version = safeEval(attrs["value"])
      elif name == "reserved":
          self.reserved = safeEval(attrs["value"])
      elif name == "glyphVariations":
          if not hasattr(self, "variations"):
              self.variations = {}
          glyphName = attrs["glyph"]
          glyph = ttFont["glyf"][glyphName]
          numPointsInGlyph = self.getNumPoints_(glyph)
          glyphVariations = []
          for element in content:
              if isinstance(element, tuple):
                  name, attrs, content = element
                  if name == "tuple":
                      gvar = TupleVariation(
                          {}, [None] * numPointsInGlyph
                      )
                      glyphVariations.append(gvar)
                      for tupleElement in content:
                          if isinstance(tupleElement, tuple):
                              (
                                  tupleName,
                                  tupleAttrs,
                                  tupleContent,
                              ) = tupleElement
                              gvar.fromXML(
                                  tupleName, tupleAttrs, tupleContent
                              )
          self.variations[glyphName] = glyphVariations
  
imports: from collections import UserDict, deque
  from functools import partial
  from fontTools.misc import sstruct
  from fontTools.misc.textTools import safeEval
  from .None import DefaultTable
  import array
  import itertools
  import logging
  import struct
  import sys
  import fontTools.ttLib.tables.TupleVariation
label_desc: Use image node_id 9 for calling the table__g_v_a_r obj's underlying member method code with example usage: obj.fromXML(name, attrs, content, ttFont) without return types