type CookieJarLike = {
    get: (name: string) => string | undefined;
    set: (name: string, value: string, opts?: Record<string, unknown>) => unknown;
};
type ConsentStateLike = {
    analytics_storage?: string;
};
export declare function ensureClientId({ jar, consent, nowMs, cookieDomain, cookiePrefix, cookiePath, cookieSameSite, cookieSecure, cookieMaxAgeSeconds, cookieUpdate, forceCookieAttrsWrite, }?: {
    jar?: CookieJarLike;
    consent?: ConsentStateLike;
    nowMs?: number;
    cookieDomain?: string;
    cookiePrefix?: string;
    cookiePath?: string;
    cookieSameSite?: string;
    cookieSecure?: boolean;
    cookieMaxAgeSeconds?: number;
    cookieUpdate?: boolean;
    forceCookieAttrsWrite?: boolean;
}): {
    cid: string | null;
    wrote: boolean;
};
/**
 * Applies an explicit client id to the d8a client cookie, honoring cookie_update
 * semantics: do not overwrite existing cookies when cookie_update=false,
 * but still create missing cookies.
 */
export declare function applyClientIdCookie({ jar, cid, consent, cookieDomain, cookiePrefix, cookiePath, cookieSameSite, cookieSecure, cookieMaxAgeSeconds, cookieUpdate, forceCookieAttrsWrite, }?: {
    jar?: CookieJarLike;
    cid?: unknown;
    consent?: ConsentStateLike;
    cookieDomain?: string;
    cookiePrefix?: string;
    cookiePath?: string;
    cookieSameSite?: string;
    cookieSecure?: boolean;
    cookieMaxAgeSeconds?: number;
    cookieUpdate?: boolean;
    forceCookieAttrsWrite?: boolean;
}): {
    cid: null;
    wrote: boolean;
} | {
    cid: string;
    wrote: boolean;
};
/**
 * Applies an explicit serialized session cookie value to a d8a per-property cookie,
 * honoring cookie_update semantics: do not overwrite existing cookies when cookie_update=false,
 * but still create missing cookies.
 */
export declare function applySessionCookie({ jar, propertyId, value, consent, cookieDomain, cookiePrefix, cookiePath, cookieSameSite, cookieSecure, cookieMaxAgeSeconds, cookieUpdate, forceCookieAttrsWrite, }?: {
    jar?: CookieJarLike;
    propertyId?: string;
    value?: unknown;
    consent?: ConsentStateLike;
    cookieDomain?: string;
    cookiePrefix?: string;
    cookiePath?: string;
    cookieSameSite?: string;
    cookieSecure?: boolean;
    cookieMaxAgeSeconds?: number;
    cookieUpdate?: boolean;
    forceCookieAttrsWrite?: boolean;
}): {
    wrote: boolean;
};
export declare function ensureSession({ jar, propertyId, consent, nowMs, cookieDomain, cookiePrefix, cookiePath, cookieSameSite, cookieSecure, cookieMaxAgeSeconds, cookieUpdate, forceCookieAttrsWrite, sessionTimeoutMs, }?: {
    jar?: CookieJarLike;
    propertyId?: string;
    consent?: ConsentStateLike;
    nowMs?: number;
    cookieDomain?: string;
    cookiePrefix?: string;
    cookiePath?: string;
    cookieSameSite?: string;
    cookieSecure?: boolean;
    cookieMaxAgeSeconds?: number;
    cookieUpdate?: boolean;
    forceCookieAttrsWrite?: boolean;
    sessionTimeoutMs?: number;
}): {
    sid: number | null;
    sct: number | null;
    isNewSession: boolean;
    wrote: boolean;
};
export {};