AudioManager.m

// AudioManager.m

#import "RCTBridgeModule.h"

// This registers your module with React Native, so it can be exposed to JS
@interface RCT_EXTERN_MODULE(AudioManager, NSObject)

RCT_EXTERN_METHOD(setPlaying:(BOOL) value
                  resolver:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject
                  )

// ... other methods

@end