code: def add(self, indices, values):
          
          for i, v in zip(indices, values):
              self.buffer[i] = numpy.append(self.buffer[i], v)
              self.buffer_expire[i] = numpy.append(self.buffer_expire[i], self.time)
          self.advance_time()
docs: Add triggers in 'values' to the buffers indicated by the indices