code: def __init__(self, reader=None):
      self.majorVersion = None
      self.minorVersion = None
      self.metaData = None
      self.privData = None
      if reader:
          self.majorVersion = reader.majorVersion
          self.minorVersion = reader.minorVersion
          if reader.metaLength:
              reader.file.seek(reader.metaOffset)
              rawData = reader.file.read(reader.metaLength)
              assert len(rawData) == reader.metaLength
              data = self._decompress(rawData)
              assert len(data) == reader.metaOrigLength
              self.metaData = data
          if reader.privLength:
              reader.file.seek(reader.privOffset)
              data = reader.file.read(reader.privLength)
              assert len(data) == reader.privLength
              self.privData = data
  
imports: from io import BytesIO
  from types import SimpleNamespace
  from fontTools.misc.textTools import Tag
  from fontTools.misc import sstruct
  from fontTools.ttLib import TTLibError, TTLibFileIsCollectionError
  import struct
  from collections import OrderedDict
  import logging
label_desc: Use image node_id 1 to create a new WOFFFlavorData object  with example: obj = WOFFFlavorData(reader)