export declare const TRANSPORT_ERROR_CODES: readonly ["session_busy", "session_cooldown", "provider_breaker", "provider_cap", "process_cap", "account_cap", "connect_cap", "handshake_rate", "memory_guard", "connect_failure", "handshake_timeout", "stale_auth", "queue_overflow", "active_socket_loss", "provider_connection_limit", "previous_response_not_found"];
export type TransportErrorCode = (typeof TRANSPORT_ERROR_CODES)[number];
export type TransportErrorPhase = "admission" | "handshake" | "pre_send" | "active";
export type WebSocketTransportErrorOptions = {
    code: TransportErrorCode;
    phase: TransportErrorPhase;
    message: string;
    fallbackEligible: boolean;
    breakerEligible: boolean;
    safeToReplay: boolean;
    cause?: unknown;
};
export declare class WebSocketTransportError extends Error {
    readonly code: TransportErrorCode;
    readonly phase: TransportErrorPhase;
    readonly fallbackEligible: boolean;
    readonly breakerEligible: boolean;
    readonly safeToReplay: boolean;
    readonly cause?: unknown;
    constructor(options: WebSocketTransportErrorOptions);
}
export declare function isWebSocketTransportError(value: unknown): value is WebSocketTransportError;
export declare function isTransportFallbackEligible(value: unknown): boolean;
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