*   tf.optimizers => tf.keras.optimizers
    *   Add tf.keras.layers.AbstractRNNCell as the preferred implementation of
        RNN cell for TF v2. User can use it to implement RNN cell with custom
        behavior.
    *   Adding `clear_losses` API to be able to clear losses at the end of
        forward pass in a custom training loop in eager.

	DECW DX                                 // 66ffca
	DECW R11                                // 6641ffcb
	DECL (BX)                               // ff0b
	DECL (R11)                              // 41ff0b
	DECL DX                                 // ffca
	DECL R11                                // 41ffcb
	DECQ (BX)                               // 48ff0b
	DECQ (R11)                              // 49ff0b