import { TicTacToeGame } from "../TicTacToeGame";
import { TicTacToeOutput } from "./TicTacToeOutput";
/**
 * A output handler that converts the game into a string grid.
 * This is mainly for example purposes of use cases for an output handler.
 */
export declare class TicTacToeStringOutput implements TicTacToeOutput {
    private sep;
    private channel;
    /**
     * Constructs a new TicTacToeStringOutput.
     *
     * @param sep The string to use to outline the grid and separate cells.
     * @param channel The channel to output to.
     */
    constructor(sep: string, channel: (res: string) => void);
    /** @hidden */
    onMove(tttGame: TicTacToeGame): void;
    /** @hidden */
    onGameOver(tttGame: TicTacToeGame): void;
    /** @hidden */
    onGameStart(tttGame: TicTacToeGame): void;
    /**
     * Constructs a string representation of the given game
     * and outputs it to the channel.
     *
     * @param tttGame The game to output.
     */
    private output;
    /**
     * Constructs a string representation of the given board.
     *
     * @param board The board to output.
     * @returns An array of lines representing the board lines.
     */
    private constructBoardLines;
    /**
     * Returns a string representation of the given symbol.
     */
    private getSymbolString;
}