android {
    
}

repositories {
    jcenter()
    mavenCentral()
    maven {
            url "https://maven.google.com" // Google's Maven repository
        }
}
def safeExtGet(prop, fallback) {
    rootProject.ext.has(prop) ? rootProject.ext.get(prop) : fallback
}
dependencies {
  implementation "com.android.installreferrer:installreferrer:${safeExtGet('installreferrer', '2.2')}"
  implementation "com.appsflyer:af-android-sdk:${safeExtGet('appsflyerVersion', "6.14.0")}"
}