export declare function buildSigningService(): {
    readonly createKeypair: () => Promise<import("../../framework/types/result.js").Result<import("./create-keypair.js").CreateSigningKeypairError, import("../../domain/keypair.js").SigningKeypair>>;
    readonly sign: (privateKey: import("../../domain/keypair.js").PrivateKey, payload: object | string) => Promise<{
        error?: never;
        value: string;
    } | {
        error: {
            readonly _tag: "SigningError";
            readonly cause: unknown;
            name: string;
            message: string;
            stack?: string;
        };
        value?: never;
    }>;
};
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