tf.QueueBase.enqueue(vals, name=None)
Enqueues one element to this queue.
If the queue is full when this operation executes, it will block until the element has been enqueued.
At runtime, this operation may raise an error if the queue is closed before or during its execution. If the queue is closed before this operation runs, tf.errors.CancelledError will be raised. If this operation is blocked, and either (i) the queue is closed by a close operation with cancel_pending_enqueues=True, or (ii)