/**
 * Status of a tracked breakpoint timeout.
 */
export interface TimeoutStatus {
    breakpointId: string;
    timedOut: boolean;
    remainingMs: number;
}
/**
 * Callback invoked when a breakpoint's timeout fires.
 */
export type TimeoutCallback = (breakpointId: string) => void;
/**
 * Manages timeout tracking for in-flight breakpoints.
 * Fires a callback when a breakpoint's deadline is reached.
 */
export declare class TimeoutManager {
    private readonly tracked;
    /**
     * Register a timeout for a breakpoint.
     * If the breakpoint is already tracked, the existing timeout is replaced.
     */
    trackBreakpoint(breakpointId: string, timeoutMs: number, onTimeout: TimeoutCallback): void;
    /**
     * Cancel timeout tracking for a breakpoint.
     * Returns true if the breakpoint was being tracked.
     */
    cancelTracking(breakpointId: string): boolean;
    /**
     * Get the timeout status for a breakpoint.
     * Returns undefined if the breakpoint is not being tracked.
     */
    getStatus(breakpointId: string): TimeoutStatus | undefined;
    /**
     * Check if a specific breakpoint has timed out.
     */
    isTimedOut(breakpointId: string): boolean;
    /**
     * Get all currently tracked breakpoint IDs.
     */
    getTrackedIds(): string[];
    /**
     * Clear all timeouts and release resources.
     */
    dispose(): void;
}
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