Returns a set of object that pass a test in a given Block, using the specified enumeration options.
Original signature is '- (NSSet *)objectsWithOptions:(NSEnumerationOptions)opts passingTest:(BOOL (^)(id obj, BOOL *stop))predicate'
Available in Mac OS X v10.6 and later.


- opts (NSEnumerationOptions)
- A bitmask that specifies the options for the enumeration (whether it should be performed concurrently and whether it should be performed in reverse order).

An NSSet containing objects that pass the test.

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