export type ParsedKoiSessionKey = {
    koiId: string;
    rest: string;
};
export declare function parseKoiSessionKey(sessionKey: string | undefined | null): ParsedKoiSessionKey | null;
export declare function isSubkoiSessionKey(sessionKey: string | undefined | null): boolean;
export declare function isAcpSessionKey(sessionKey: string | undefined | null): boolean;
export declare function resolveThreadParentSessionKey(sessionKey: string | undefined | null): string | null;