code: def compile(self, otFont):
      f = BytesIO()
      self.cff.compile(f, otFont, isCFF2=True)
      return f.getvalue()
  
imports: from io import BytesIO
  from fontTools.ttLib.tables.C_F_F_ import table_C_F_F_
label_desc: Use image node_id 2 for calling the table_C_F_F__2 obj's underlying member method code with example usage: obj.compile(otFont) and returns: f