n, b.err = b.wr.Write(p)
		} else {
			n = copy(b.buf[b.n:], p)
			b.n += n
			b.Flush()
		}
		nn += n
		p = p[n:]
	}
	if b.err != nil {
		return nn, b.err
	}
	n := copy(b.buf[b.n:], p)
	b.n += n
	nn += n
	return nn, nil
}

// WriteByte writes a single byte.
func (b *Writer) WriteByte(c byte) error {
	if b.err != nil {
		return b.err
	}

*   `tf.nn`

    *   `tf.nn.embedding_lookup_sparse` and `tf.nn.safe_embedding_lookup_sparse` now support ids and weights described by `tf.RaggedTensor`s.
    *   Added a new boolean argument `allow_fast_lookup` to `tf.nn.embedding_lookup_sparse` and `tf.nn.safe_embedding_lookup_sparse`, which enables a simplified and typically faster lookup procedure.

        map.put("レ", new String[] { "re" });
        map.put("ロ", new String[] { "ro" });

        map.put("ワ", new String[] { "wa" });
        map.put("ヲ", new String[] { "wo" });
        map.put("ン", new String[] { "nn" });

        map.put("ガ", new String[] { "ga" });
        map.put("ギ", new String[] { "gi" });
        map.put("グ", new String[] { "gu" });
        map.put("ゲ", new String[] { "ge" });