Comparing of 'Class' with other 'Class' in Objective-C

Does a comparable function to 'isKindOfClass:' exist for comparing a 'Class' to another (i.e. without constructing an instance of either class). For example, given:

Class class = NSClassFromString(@"NSNumber");

[NSNumber isKindOfClass:class]; // YES
[NSString isKindOfClass:class]; // NO

Thanks!