code: def unregisterWorker(self, name):
  		
  		if not name in self.worker_list:
  			self.logger.error("Worker {0} is not registered!".format(name))
  			raise Exception("Worker {0} is not registered!".format(name))
  
  		del self.worker_list[name]
  		self.logger.debug("Unregistered worker {0}".format(name))
docs: Unregister the Worker registered under the given name.
  
  		Make sure that the given Worker is properly stopped, or that a reference is
  		kept in another place. Once unregistered, this class will not keep any
  		other references to the Worker.
  
  		Parameters
  		----------
  		name: string
  			Name of the Worker to unregister