@ledgerhq/coin-hedera/src/types/signer.ts

Ledger Hedera Coin integration

export type HederaSignature = Uint8Array | undefined; // NOTE: check if undefined is possible
export interface HederaSigner {
  getPublicKey(path: string): Promise<string>;
  signTransaction(transaction: Uint8Array): Promise<Uint8Array>;
}

export type HederaSignatureSdk = Uint8Array;