/** `StreamKind.STREAM_KIND_DESKTOP` (agent-proto enum value). */
export declare const STREAM_KIND_DESKTOP = 2;
/** `StreamKind.STREAM_KIND_PTY` (agent-proto enum value). */
export declare const STREAM_KIND_PTY = 1;
/** `StreamKind.STREAM_KIND_BROWSER` (agent-proto enum value). */
export declare const STREAM_KIND_BROWSER = 3;
/** `StreamKind.STREAM_KIND_COMPUTER` (agent-proto enum value). */
export declare const STREAM_KIND_COMPUTER = 4;
/** `StreamRole.STREAM_ROLE_CLIENT` (agent-proto enum value). */
export declare const STREAM_ROLE_CLIENT = 2;
/** `StreamCloseReason.STREAM_CLOSE_REASON_NORMAL`. */
export declare const STREAM_CLOSE_REASON_NORMAL = 1;
export interface RelayChannel {
    channelId: string;
    workspaceId: string;
    agentId: string;
    kind: number;
    port: number;
}
export interface RelayStreamOpen {
    channel: RelayChannel;
    token: string;
    role: number;
    resumeFromSeq: string;
}
/** Encode a `StreamOpen`, byte-compatible with `StreamOpen.encode(...).finish()`. */
export declare function encodeStreamOpen(message: RelayStreamOpen): Uint8Array;
/** Encode an intentional viewer detach. Transport loss omits this message so
 * reconnect/resume remains available. */
export declare function encodeStreamClose(message: {
    channelId: string;
    reason: number;
    message: string;
}): Uint8Array;
/** Encode a viewer→agent PTY input `StreamFrame`. */
export declare function encodeStreamFrame(message: {
    channelId: string;
    seq: string;
    data: Uint8Array;
    producedAtMs: string;
}): Uint8Array;
/** Decode a `StreamOpenAck` (we need `accepted` + the error message). */
export declare function decodeStreamOpenAck(bytes: Uint8Array): {
    accepted: boolean;
    error?: {
        message?: string;
    };
};
/** Decode the sequence plus `data` from a `StreamFrame`. */
export declare function decodeStreamFrame(bytes: Uint8Array): {
    seq: string;
    data: Uint8Array;
};