*   (since v2.7) `tf.timestamp`. Throws `FailedPrecondition`
        *   (since v2.7) `tf.Variable.scatter_add` (and other scatter methods,
            both on ref and resource variables)
        *   (since v2.7) The random-number-generating ops in the `tf.random`
            module when the global random seed has not yet been set (via
            `tf.random.set_seed`). Throws `RuntimeError` from Python or

If the max is empty for a given segment ID `i`, `output[i] = 0`.

Caution: On CPU, values in `segment_ids` are always validated to be sorted,
and an error is thrown for indices that are not increasing. On GPU, this
does not throw an error for unsorted indices. On GPU, out-of-order indices
result in safe but unspecified behavior, which may include treating
out-of-order indices as the same as a smaller following index.

                  no Conflicted Listeners. To put this another way, implementations may
                  accept a partial Listener set only if they throw out *all* the conflicting
                  Listeners. No picking one of the conflicting listeners as the winner.
                  This also means that the Gateway must have at least one non-conflicting