export type UpdateResponseHeaders = Headers | Record<string, string | string[]> | ((headers: Headers) => Headers | void);
export interface RequestAPI {
    origin?: string;
    environment?: string | null;
    waitUntil?(promise: Promise<unknown>): void;
    deferTask?(fn: () => Promise<unknown> | void): void;
    setResponseHeaders?(updateHeaders: UpdateResponseHeaders): void;
}
export interface ScopeDefinition<Scope extends RequestAPI = any> {
    getStore(): Scope | undefined;
    run<R>(scope: Scope, runner: () => R): R;
    run<R, TArgs extends any[]>(scope: Scope, runner: (...args: TArgs) => R, ...args: TArgs): R;
}
declare const scopeRef: {
    current: ScopeDefinition<RequestAPI> | null;
};
export { scopeRef };