/**
 * Wrapper around terminal-model's StreamingTerminal that provides a virtual terminal buffer.
 * Interprets ANSI escape sequences (cursor movement, line clearing, etc.) to produce
 * the actual rendered output rather than raw intermediate states.
 *
 * This implementation preserves whitespace and blank lines by NOT calling trimStart(),
 * which was the bug in the previous xterm-based implementation.
 */
export declare class TerminalBuffer {
    private terminal;
    private allLines;
    constructor(_cols: number, _scrollback?: number);
    /**
     * Write raw data to the terminal buffer.
     * The terminal interprets all ANSI sequences automatically.
     */
    write(data: string | Buffer): void;
    /**
     * Resize the terminal width.
     * terminal-model doesn't use column constraints, so this is a no-op for compatibility.
     */
    resize(_cols: number): void;
    /**
     * Extract the rendered lines from the terminal buffer.
     * This returns the actual visible content after all ANSI sequences
     * have been processed, with color codes preserved.
     *
     * CRITICAL: Unlike the xterm implementation, we do NOT call trimStart(),
     * which preserves legitimate indentation and blank lines.
     */
    getLines(): string[];
    /**
     * Get the number of rendered lines.
     */
    get lineCount(): number;
    /**
     * Clean up terminal resources.
     */
    dispose(): void;
}