class_docstr: the OS/2 table
class_docstr_tok: ["the","OS\/2","table"]
code: def fromXML(self, name, attrs, content, ttFont):
      if name == "panose":
          self.panose = panose = Panose()
          for element in content:
              if isinstance(element, tuple):
                  name, attrs, content = element
                  panose.fromXML(name, attrs, content, ttFont)
      elif name in (
          "ulUnicodeRange1",
          "ulUnicodeRange2",
          "ulUnicodeRange3",
          "ulUnicodeRange4",
          "ulCodePageRange1",
          "ulCodePageRange2",
          "fsType",
          "fsSelection",
      ):
          setattr(self, name, binary2num(attrs["value"]))
      elif name == "achVendID":
          setattr(self, name, safeEval("'''" + attrs["value"] + "'''"))
      else:
          setattr(self, name, safeEval(attrs["value"]))
  
imports: from fontTools.misc import sstruct
  from fontTools.misc.roundTools import otRound
  from fontTools.misc.textTools import safeEval, num2binary, binary2num
  from fontTools.ttLib.tables import DefaultTable
  import bisect
  import logging
label_desc: Use image node_id 4 for calling the table_O_S_2f_2 obj's underlying member method code with example usage: obj.fromXML(name, attrs, content, ttFont) without return types