code: def iterate(self, iterable, element_timeout=None):
          
          self._assert_active()
          with self._queuelock:
              # Get this loop id.
              self._thread_loop_ids[self._thread_num] += 1
              loop_id = self._thread_loop_ids[self._thread_num]
              # Iterate.
              return _IterableQueueIterator(
                  self._iter_queue, loop_id, self, iterable, element_timeout
              )
docs: Iterate over an iterable.
  
          The iterator is executed in the host thread. The threads dynamically
          grab the elements. The iterator elements must hence be picklable to
          be transferred through the queue.
  
          If there is only one thread, no special operations are performed.
          Otherwise, effectively n-1 threads are used to process the iterable
          elements, and the host thread is used to provide them.
  
          You can specify a timeout for the clients to adhere.