import type { RunContract, Signature } from "./types.js";
/** Content hash of a contract, excluding signatures. */
export declare function contractHash(contract: RunContract): string;
export declare function signContract(contract: RunContract, privateKeyPem: string, publicKeyPem: string, signer: Signature["signer"]): RunContract;
export type KeyResolver = (keyId: string) => string | undefined;
export declare function verifyContractSignature(contract: RunContract, signer: Signature["signer"], resolvePublicKeyPem: KeyResolver): boolean;