getAtHeight

fun <T : Any> getAtHeight(heights: Long, mapper: (hash: ByteArray, hashPrevBlock: ByteArray?, diffBits: Long, hashAncestor: ByteArray?, time: Long, height: Long, chainWork: ByteArray, size: Long, nonce: Long, hashMerkleRoot: ByteArray?, txCount: Long) -> T): Query<T>
fun getAtHeight(heights: Long): Query<BchBlockHeaderTbl>