code: def AddPlan(meta_net_def, plan_name, plan_def):
      meta_net_def.plans.add(key=plan_name, value=plan_def)
  
imports: from caffe2.python import core, scope
label_desc: Use image node_id 16 for calling a global function with example usage: AddPlan(meta_net_def, plan_name, plan_def) without return types