method Ledger.prototype.signimport { Ledger } from "https://deno.land/x/polkadot@0.2.12/hw-ledger/mod.ts"; sign(message: Uint8Array,accountOffset?,addressOffset?,unnamed 3?: Partial<AccountOptions>,): Promise<LedgerSignature>Parametersmessage: Uint8ArrayoptionalaccountOffset = [UNSUPPORTED]optionaladdressOffset = [UNSUPPORTED]optionalunnamed 3: Partial<AccountOptions> = [UNSUPPORTED]ReturnsPromise<LedgerSignature>