import FocusSymbol from '../../../symbols/focusSymbol.js';
import BTModule, { BTGridData, CheckResult } from '../data.js';
export default class FocusBTModule extends BTModule {
    instr: FocusSymbol;
    private cachedCheckResult?;
    constructor(instr: FocusSymbol);
    checkGlobal(grid: BTGridData): CheckResult | false;
    private buildCheckAndRating;
}