*   `tf.data`

    * `tf.data` now has an `autotune_options.initial_parallelism` option to
      control the initial parallelism setting used by autotune before the data
      pipeline has started running. The default is 16. A lower value reduces
      initial memory usage, while a higher value improves startup time.

## Keras

*  `keras.layers.experimental.DynamicEmbedding`
    * Added `DynamicEmbedding` Keras layer

    /** Transliterator for any-lower. */
    protected Transliterator anyLower;

    /**
     * Constructor for KatakanaToAlphabetConverter.
     */
    public KatakanaToAlphabetConverter() {
        convertMap = generateConvertMapping();
        fullWidthHalfWidth = Transliterator.getInstance("Fullwidth-Halfwidth");
        anyLower = Transliterator.getInstance("Any-Lower");
    }

    @Override

				c -= 'a' - 'A'
			}
			b[i] = c
		}
		return b
	}
	return Map(unicode.ToUpper, s)
}

// ToLower returns a copy of the byte slice s with all Unicode letters mapped to
// their lower case.
func ToLower(s []byte) []byte {
	isASCII, hasUpper := true, false
	for i := 0; i < len(s); i++ {
		c := s[i]
		if c >= utf8.RuneSelf {
			isASCII = false
			break
		}

        /*
         * normalizerChain.add(new HankakuKanaToZenkakuKana()); normalizerChain.add(new
         * FullWidthToHalfWidthAlphabetNormalizer()); normalizerChain.add(new ICUNormalizer("Any-Lower"));
         */
        return normalizerChain;
    }

    /**
     * Creates a new instance of DefaultContentsAnalyzer using the provided client and suggest settings.
     *