code: def compile(self, axisTags, includePostScriptName):
      result = [sstruct.pack(FVAR_INSTANCE_FORMAT, self)]
      for axis in axisTags:
          fixedCoord = fl2fi(self.coordinates[axis], 16)
          result.append(struct.pack(">l", fixedCoord))
      if includePostScriptName:
          result.append(struct.pack(">H", self.postscriptNameID))
      return bytesjoin(result)
  
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 2 for calling the NamedInstance obj's underlying member method code with example usage: obj.compile(axisTags, includePostScriptName) and returns: bytesjoin