import type { FiberId } from "../../Fiber/FiberId";
import type { Cause } from "./model";
/**
 * ```haskell
 * fail :: e -> Cause e
 * ```
 */
export declare const fail: <E>(value: E) => Cause<E>;
/**
 * ```haskell
 * die :: _ -> Cause Never
 * ```
 */
export declare const die: (value: unknown) => Cause<never>;
/**
 * ```haskell
 * interrupt :: FiberId -> Cause Never
 * ```
 */
export declare const interrupt: (fiberId: FiberId) => Cause<never>;
/**
 * ```haskell
 * then :: Cause c => (c e, c f) -> c (e | f)
 * ```
 */
export declare const then: <E, E1>(left: Cause<E>, right: Cause<E1>) => Cause<E | E1>;
/**
 * ```haskell
 * both :: Cause c => (c e, c f) -> c (e | f)
 * ```
 */
export declare const both: <E, E1>(left: Cause<E>, right: Cause<E1>) => Cause<E | E1>;
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