import * as polkadot from "https://deno.land/x/polkadot@0.2.25/util-crypto/bn.ts"; VariablesvBN_BE_256_OPTSvBN_BE_32_OPTSvBN_BE_OPTSvBN_LE_16_OPTSvBN_LE_256_OPTSvBN_LE_32_OPTSvBN_LE_512_OPTSvBN_LE_OPTS