<p>Is there a Ruby equivalent for Python's "is"? It tests whether two objects are identical (i.e. have the same memory location).</p>

Use
```
a.equal? b
```
http://www.ruby-doc.org/core/classes/Object.html
Unlike ==, the equal? method should never be overridden by subclasses: it is used to determine object identity (that is, a.equal?(b) iff a is the same object as b).