export declare const addInflightPromise: (resolver: () => void) => void;
/**
 * Arms (or re-arms) the backstop timer that releases parked token consumers
 * once the inflight OAuth blocking deadline passes.
 *
 * On fire it re-reads the deadline instead of trusting the armed one: a fresh
 * `signInWithRedirect` may have renewed it (re-arm for the new deadline), or
 * the flow may have been released through another path already (the re-check
 * returns `undefined` and draining is a no-op). The release is purely local —
 * it never mutates shared OAuth state, so another tab's still-running flow is
 * left intact.
 *
 * Note: browsers throttle timers in background tabs, which may delay (never
 * prevent) this release; the cross-tab storage listener remains the fast path.
 */
export declare const armInflightDeadline: (deadline: number, recheckDeadline: () => Promise<number | undefined>) => void;
export declare const resolveAndClearInflightPromises: () => void;