checkpoint, please change your optimizer to
        `tf.keras.optimizers.legacy.XXX` (e.g.
        `tf.keras.optimizers.legacy.Adam`).
    *   **TF1 compatibility.** The new optimizer does not support TF1 any more,
        so please use the legacy optimizer `tf.keras.optimizer.legacy.XXX`.
        We highly recommend to migrate your workflow to TF2 for stable
        support and new features.

rateK512 = (1600 - 512) / 8 rateK768 = (1600 - 768) / 8 rateK1024 = (1600 - 1024) / 8 ) // NewLegacyKeccak256 returns a new Digest computing the legacy, non-standard // Keccak-256 hash. func NewLegacyKeccak256() *Digest { return &Digest{rate: rateK512, outputLen: 32, dsbyte: dsbyteKeccak} } // NewLegacyKeccak512 returns a new Digest computing the legacy, non-standard // Keccak-512 hash. func NewLegacyKeccak512() *Digest { return &Digest{rate: rateK1024, outputLen: 64, dsbyte: dsbyteKeccak} } gol...