export type ResolveWebchatSessionKeyInput = {
    sessionKey?: string;
};
export type ResolveWebchatSessionKeyResult = {
    ok: true;
    sessionKey: string;
} | {
    ok: false;
    error: string;
};
/**
 * Resolve the server-owned session key for webchat `/api/agent` requests.
 * Creation is intentionally out-of-band via `POST /api/sessions`.
 */
export declare function resolveWebchatSessionKey(input: ResolveWebchatSessionKeyInput): ResolveWebchatSessionKeyResult;