ext {
        espresso_version = '3.0.2'
        gradle_version = '3.1.4'
        kotlin_version = '1.2.60'
        support_v4_version = '27.1.1'
        support_test_version = '1.0.2'
        gson_version = '2.8.0'
        junit_version = '4.12'
        powermock_version = '1.6.6'
        rxandroid_version = '1.2.1'
        rxjava_version = '1.1.6'
        rxkotlin_version = '0.60.0'
        mp_android_chart_version = 'v2.2.4'
        multidex = '1.0.3'
    }