parameters: (self, fin=0, rsv1=0, rsv2=0, rsv3=0,
                   opcode=OPCODE_TEXT, mask=1, data="")
docstring: Constructor for ABNF.
          please check RFC for arguments.
docstring_summary: Constructor for ABNF.
          please check RFC for arguments.
docstring_tokens: Constructor for ABNF . please check RFC for arguments .
function: def __init__(self, fin=0, rsv1=0, rsv2=0, rsv3=0,
                   opcode=OPCODE_TEXT, mask=1, data=""):
          """
          Constructor for ABNF.
          please check RFC for arguments.
          """
          self.fin = fin
          self.rsv1 = rsv1
          self.rsv2 = rsv2
          self.rsv3 = rsv3
          self.opcode = opcode
          self.mask = mask
          self.data = data
          self.get_mask_key = os.urandom
function_tokens: def __init__ ( self , fin = 0 , rsv1 = 0 , rsv2 = 0 , rsv3 = 0 , opcode = OPCODE_TEXT , mask = 1 , data = "" ) : self . fin = fin self . rsv1 = rsv1 self . rsv2 = rsv2 self . rsv3 = rsv3 self . opcode = opcode self . mask = mask self . data = data self . get_mask_key = os . urandom