code: def __init__(self, headerlen, maxlen, continuation_ws, splitchars):
      self._maxlen = maxlen
      self._continuation_ws = continuation_ws
      self._continuation_ws_len = len(continuation_ws)
      self._splitchars = splitchars
      self._lines = []
      self._current_line = _Accumulator(headerlen)
  
imports: import re
  import binascii
  import email.quoprimime
  import email.base64mime
  from email.errors import HeaderParseError
  from email import charset
label_desc: Use image node_id 1 to create a new _ValueFormatter object  with example: obj = _ValueFormatter(headerlen, maxlen, continuation_ws, splitchars)