IntRange(1,566).map {
                TestData(UUID.randomUUID().toString())
            }.forEach {
                val doc = colref.document()
                doc.set(it)
            }
            batch.commit().await()

            IntRange(1,10).forEach {
                println("Firebase collection size : ${docRef.collection("results").get().await().size()}")
                delay(10)
            }