How to pass arguments of optional dependencies as params in objective c framework function

I am developing an objective c framework to be used by other fellow developers.

In this framework I would like to use if available classes from other frameworks optionally if they are available.

For example, at the moment I am using AdSupport.framework(if is available - linked by the app developer) with the following approach:

if (NSClassFromString(@"ASIdentifierManager")) {
        NSString adString = [[[NSClassFromString(@"ASIdentifierManager") sharedManager] advertisingIdentifier] UUIDString];
}

However now, I want to have arguments of public functions of my framework to include classes of optional dependencies and I am not able to do that.

For example:

I want to have a function:

+ (void) sendLocation: (CLLocation *) myLoc;

but CoreLocation.framework will be optionally linked and maybe not available to an app. How can I follow a similar approach with AdSupport.framework above?

I assumed I could do something like this:

+ (void) sendLocation: (NSClassFromString(@"CLLocation") *) myLoc; 

or

+ (void) sendLocation: (id) myLoc; 

or

+ (void) sendLocation: (Class) myLoc; 

and then extract somehow coordinates but was not able to achieve that. Last option (Class) seems to compile but I cannot find a way to extract params..

Can anyone help with that?