/**
 * High Order Functions 
 * that execute function only in debug build variant
 */
fun debugMode(function: () -> Unit) {
    if (BuildConfig.DEBUG) {
        function()
    }
}

/**
 * How to use the code above
 */
class MyActivity : Activity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        
        debugMode {
          addInterceptor(loggingInterceptor)
        }
    }
}