@Override
    public boolean equals(final Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        final IoY ioY = (IoY) o;

        return y.equals(ioY.y);

    }
A test class to be serialized.

@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/structure/io/IoY.java