// gradients available initially).
//
// Then we repeatedly pop an entry from the stack, run its backprop, and update
// the gradients of its inputs. Once we have computed all gradients for a single
// input we can mark this input as done, and this can trigger adding an entry to
// the stack if all outputs of that entry are now done.
//
// When the stack is empty we have gradients for all tensors we're interested

            tf.lite.TFLiteConverter to False to disable this change
    *   Native TF Lite variables are now enabled during conversion by default on
        all v2 TfLiteConverter entry points.
        `experimental_enable_resource_variables` on tf.lite.TFLiteConverter is
        now True by default and will be removed in the future.

*   `tf.function`: