import { WebSocket } from "ws";
import type { Logger } from "@dev-anywhere/shared/logger";
export type RelayChaosDirection = "client_to_proxy" | "proxy_to_client";
export interface RelayChaosOptions {
    enabled: boolean;
    delayMs: number;
    duplicate: boolean;
    duplicateDelayMs: number;
    reorder: boolean;
    reorderDelayMs: number;
    types: Set<string> | undefined;
}
export interface RelayChaosMeta {
    direction: RelayChaosDirection;
    type: string;
    guard?: () => boolean;
}
export interface RelayChaos {
    send(ws: WebSocket, data: string | Buffer, meta: RelayChaosMeta): void;
}
export declare function parseRelayChaosFromEnv(env: NodeJS.ProcessEnv): RelayChaosOptions;
export declare function createRelayChaos(options: RelayChaosOptions, logger: Logger): RelayChaos;
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