docstr: remove pool singleton, if exists
docstr_tok: ["remove","pool","singleton",",","if","exists"]
code: def clear(self):
      "remove pool singleton, if exists"
      try:
          self._pool.clear()
      except AttributeError:
          pass
  
label_desc: Use image node_id 8 for calling the Map obj's underlying member method code with example usage: obj.clear() without return types