export declare const ERROR_TAG: "MiddlewareError";
declare const MiddlewareError_base: new <A extends Record<string, any> = {}>(args: import("effect/Types").VoidIfEmpty<{ readonly [P in keyof A as P extends "_tag" ? never : P]: A[P]; }>) => import("effect/Cause").YieldableError & {
    readonly _tag: "MiddlewareError";
} & Readonly<A>;
export declare class MiddlewareError extends MiddlewareError_base<{
    readonly message: string;
    readonly internal?: Array<unknown>;
}> {
}
export declare function isMiddlewareError(x: unknown): x is MiddlewareError;
export declare function toMiddlewareError(x: unknown, message?: string): MiddlewareError;
export {};
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