export default Formula;
declare class Formula {
    constructor(opt: any);
    opt: any;
    mindMap: any;
    config: {
        throwOnError: boolean;
        errorColor: string;
        output: string;
    };
    cssEl: HTMLStyleElement;
    onDestroy(): void;
    init(): void;
    getKatexConfig(): {
        throwOnError: boolean;
        errorColor: string;
        output: string;
    };
    extendQuill(): void;
    getStyleText(): string;
    addStyle(): void;
    removeStyle(): void;
    insertFormulaToNode(node: any, formula: any): void;
    latexRichToText(nodeText: any): any;
    formatLatex(richText: any): void;
    checkFormulaIsLegal(str: any): boolean;
    beforePluginRemove(): void;
    beforePluginDestroy(): void;
}
declare namespace Formula {
    const instanceName: string;
}