public ApnsServiceBuilder withAppleDestination(boolean isProduction) {
        if (isProduction) {
            return withProductionDestination();
        } else {
            return withSandboxDestination();
        }
    }
Specify to use Apple servers as iPhone gateway and feedback servers.

If the passed {@code isProduction} is true, then it connects to the
production servers, otherwise, it connects to the sandbox servers

@param isProduction  determines which Apple servers should be used:
              production or sandbox
@return this
src/main/java/com/notnoop/apns/ApnsServiceBuilder.java