code: def __init__(self, opt, shared=None):
      decanlp_tasks = [
          "squad",
          "iwslt14",
          "cnn_dm",
          "multinli",
          "sst",
          "qasrl",
          "qazre",
          "woz",
          "wikisql",
          "mwsc",
      ]
      opt = deepcopy(opt)
      opt["task"] = ", ".join(decanlp_tasks)
      super().__init__(opt, shared)
  
imports: from parlai.core.teachers import MultiTaskTeacher
  import parlai.tasks.squad.agents
  import parlai.tasks.iwslt14.agents
  import parlai.tasks.cnn_dm.agents
  import parlai.tasks.multinli.agents
  import parlai.tasks.sst.agents
  import parlai.tasks.qasrl.agents
  import parlai.tasks.qazre.agents
  import parlai.tasks.woz.agents
  import parlai.tasks.wikisql.agents
  import parlai.tasks.mwsc.agents
  from copy import deepcopy
label_desc: Use image node_id 1 to create a new DecaNLPTeacher object from inherited base classes: MultiTaskTeacher with example: obj = DecaNLPTeacher(opt, shared)