Determines whether the hash table contains a given object, and returns that object if it is present
Original signature is '- (id)member:(id)object'
Available in Mac OS X v10.5 and later.


- object (Id)
- The object to test for membership in the hash table.

If object is a member of the hash table, returns object, otherwise returns nil.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)