code: def clear(self):
      self._queue = []
  
imports: import os
  import re
  import sys
  from plex import Scanner, Str, Lexicon, Opt, Bol, State, AnyChar, TEXT, IGNORE
  from plex.traditional import re
label_desc: Use image node_id 3 for calling the LineQueue obj's underlying member method code with example usage: obj.clear() without return types