@Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            PFunctionId that = (PFunctionId) o;
            return predicateName.equals(that.predicateName) &&
                    Arrays.equals(argumentClasses, that.argumentClasses);
        }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/binary/types/PSerializer.java