getMany

fun <T : Any> getMany(ids: Collection<ByteArray>, mapper: (id: ByteArray, spendable: ByteArray, date: Long, spentDate: Long, amount: Long, groupAmount: Long, groupId: ByteArray?, address: String?, contractId: ByteArray?) -> T): Query<T>
fun getMany(ids: Collection<ByteArray>): Query<Txo>