For a given key that defines the name of the relationship from the receiver’s class to another class, returns the name of the relationship from the other class to the receiver’s class.
Original signature is '- (NSString *)inverseForRelationshipKey:(NSString *)relationshipKey'
Available in Mac OS X v10.0 and later.


- relationshipKey (NSString)
- The name of the relationship from the receiver’s class to another class.

The name of the relationship that is the inverse of the receiver's relationship named relationshipKey.

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