code: def _init():
          '''
          Internal switchyard static initialization method.  
          '''
          if ApplicationLayer._isinit:
              return
          ApplicationLayer._isinit = True
          ApplicationLayer._to_app = {}
          ApplicationLayer._from_app = Queue(f _init():
          '''
          Internal switchyard static initialization method.  
          '''
          if ApplicationLayer._isinit:
              return
          ApplicationLayer._isinit = True
          ApplicationLayer._to_app = {}
          ApplicationLayer._from_app = Queue()
docs: Internal switchyard static initialization method.