/** Public API contract for abort rejection guard logger. */
export type AbortRejectionGuardLogger = {
    warn?: (message: string, metadata?: Record<string, unknown>) => void;
};
/** Public API contract for abort rejection process target. */
export type AbortRejectionProcessTarget = {
    on(event: "unhandledRejection", listener: (reason: unknown) => void): void;
    off?(event: "unhandledRejection", listener: (reason: unknown) => void): void;
};
/** Event emitted for abort rejection. */
export type AbortRejectionEvent = {
    reason: unknown;
    preventDefault(): void;
};
/** Public API contract for abort rejection event target. */
export type AbortRejectionEventTarget = {
    addEventListener(event: "unhandledrejection", listener: (event: AbortRejectionEvent) => void): void;
    removeEventListener?(event: "unhandledrejection", listener: (event: AbortRejectionEvent) => void): void;
};
/** Options accepted by install abort rejection guard. */
export type InstallAbortRejectionGuardOptions = {
    loadLogger?: () => AbortRejectionGuardLogger | Promise<AbortRejectionGuardLogger>;
    fallbackWarn?: (message: string, metadata?: Record<string, unknown>) => void;
    processTarget?: AbortRejectionProcessTarget | null;
    eventTarget?: AbortRejectionEventTarget | null;
    cause?: string;
};
/** Public API contract for installed abort rejection guard. */
export type InstalledAbortRejectionGuard = {
    dispose(): void;
};
/** Check whether a rejection came from an abort signal. */
export declare function isAbortRejectionReason(reason: unknown): boolean;
/** Install abort rejection guard helper. */
export declare function installAbortRejectionGuard(options?: InstallAbortRejectionGuardOptions): InstalledAbortRejectionGuard;
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