xcode16 beta not support iAd

Compilation failed, how to adapt iOS versions below 14.3

xcode version : 16.0 beta (16A5171c)

Compilation error example code:

  if (@available(iOS 14.3, *)) {
    NSError *error = nil;
    NSString *token = [AAAttribution attributionTokenWithError:&error];
  } else {
    if ([[ADClient sharedClient] respondsToSelector:@selector(requestAttributionDetailsWithBlock:)]) {
        [[ADClient sharedClient] requestAttributionDetailsWithBlock:^(NSDictionary<NSString *,
                                                                      NSObject *> * _Nullable attributionDetails,
                                                                      NSError * _Nullable error) {
            
        }];
    }
  }
xcode16 beta not support iAd
 
 
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