code: def clear_collection(self, *classes):
  		''' Clear all objects from the collections associated with the
  			objects in `*cls`. **use with caution!**'''
  		for c in classes:
  			self.queue.append(ClearCollectionOp(self.transaction_id, self, c))
  		if self.autoflush:
  			self.flush(f clear_collection(self, *classes):
  		''' Clear all objects from the collections associated with the
  			objects in `*cls`. **use with caution!**'''
  		for c in classes:
  			self.queue.append(ClearCollectionOp(self.transaction_id, self, c))
  		if self.autoflush:
  			self.flush()
docs: Clear all objects from the collections associated with the
  			objects in `*cls`. **use with caution!**