code: def toXML(self, writer, ttFont):
      writer.comment(
          "Most of this table will be recalculated by the compiler"
      )
      writer.newline()
      _, names, fixes = sstruct.getformat(headFormat)
      for name in names:
          value = getattr(self, name)
          if name in fixes:
              value = floatToFixedToStr(
                  value, precisionBits=fixes[name]
              )
          elif name in ("created", "modified"):
              value = timestampToString(value)
          elif name in ("magicNumber", "checkSumAdjustment"):
              if value < 0:
                  value = value + 0x100000000
              value = hex(value)
              if value[-1:] == "L":
                  value = value[:-1]
          elif name in ("macStyle", "flags"):
              value = num2binary(value, 16)
          writer.simpletag(name, value=value)
          writer.newline()
  
file_path: catboost/contrib/python/fonttools/fontTools/ttLib/tables/_h_e_a_d.py
imports: from fontTools.misc import sstruct
  from fontTools.misc.fixedTools import floatToFixedToStr, strToFixedToFloat
  from fontTools.misc.textTools import safeEval, num2binary, binary2num
  from fontTools.misc.timeTools import timestampFromString, timestampToString, timestampNow
  from fontTools.misc.timeTools import epoch_diff
  from fontTools.misc.arrayTools import intRect, unionRect
  from .None import DefaultTable
  import logging
label_desc: Use image node_id 3 for calling the table__h_e_a_d obj's underlying member method code with example usage: obj.toXML(writer, ttFont) without return types