export type TerminalUrlResolver = {
    wsAuthQuery(): Record<string, string>;
    wsBase(baseUrl: string): string;
    /**
     * The socket of one terminal, for a host that addresses each by path (a
     * Conduit terminal binding's `/sessions/{id}/ws`). Given, the terminal and
     * its size are not added to the URL: the size goes as a `resize` message
     * once the socket is open, as it does for any resize.
     */
    wsUrl?(baseUrl: string, terminalId: string): string;
};
export declare const directTerminalUrlResolver: TerminalUrlResolver;
export type TerminalHelloMessage = {
    type: "hello";
    cols: number;
    rows: number;
};
export type TerminalOutputMessage = {
    type: "output";
    data: string;
};
export type TerminalExitMessage = {
    type: "exit";
    exitCode: number;
    signal?: number;
};
export type TerminalErrorMessage = {
    type: "error";
    message: string;
};
export type TerminalInputRejectedMessage = {
    type: "input-rejected";
    message: string;
};
export type TerminalMessage = TerminalHelloMessage | TerminalOutputMessage | TerminalExitMessage | TerminalErrorMessage | TerminalInputRejectedMessage;
export type TerminalClientOptions = {
    authToken?: () => string | undefined;
    baseUrl: string;
    cols?: number;
    rows?: number;
    terminalId: string;
    urlResolver?: TerminalUrlResolver;
};
export declare class TerminalClient {
    /** The size last asked for: the constructor's, then each resize's. */
    cols: number | undefined;
    rows: number | undefined;
    readonly terminalId: string;
    private readonly authToken?;
    private socket?;
    private readonly baseUrl;
    private readonly urls;
    constructor({ authToken, baseUrl, cols, rows, terminalId, urlResolver }: TerminalClientOptions);
    connect(): WebSocket;
    write(data: string): void;
    resize(cols: number, rows: number): void;
    close(): void;
    parse(raw: string): TerminalMessage;
    private requireOpenSocket;
    private url;
}
export declare function webSocketBaseUrl(baseUrl: string): string;