code: def encoded_string(s, encoding):
      assert isinstance(s, (_unicode, bytes))
      s = EncodedString(s)
      if encoding is not None:
          s.encoding = encoding
      return s
  
imports: from __future__ import absolute_import
  import re
  import sys
label_desc: Use image node_id 4 for calling a global function with example usage: encoded_string(s, encoding) and returns: s