@Override
    public Object convert(Inspector value) {
        byte[] content = value.asData(Value.empty().asData());
        if (content.length == 0) return null;
        return TypedBinaryFormat.decode(Optional.empty(), GrowableByteBuffer.wrap(content));
    }
A tensor field. Tensors are encoded as a data field where the data (following the length)
is encoded in a tensor binary format defined by com.yahoo.tensor.serialization.TypedBinaryFormat

@author bratseth
container-search/src/main/java/com/yahoo/prelude/fastsearch/TensorField.java