export default class Helper {
    static toSnakeCase(str: string): string;
    static wrapColumn(value: string, toSnackCase?: boolean): string;
    static escape(value: any): any;
    static extractColumnName(str: string, wantsAlias: boolean): string;
    static wildcardString(str: string, wildcard: string, lowercase?: boolean): string;
    static only<T>(obj: Record<string, T>, keys: string[]): Record<string, T>;
    static value(defaultVal: <T extends abstract new (...args: any) => any>(arg: InstanceType<T>) => any | any, ...args: any): any;
    static serializeToObject(row: Record<string, any>): Record<string, any>;
    static compileContent(content: (<T extends abstract new (...args: any) => any>(row: InstanceType<T>) => string | number) | string | number, data: Record<string, any>, row: Record<string, any> | any[]): string | number;
    static compileView(content: string, data: Record<string, any>): string;
    static escapeHTML(html: string): string;
    static getMixedValue(data: Record<string, any>, param: Record<string, any>): Record<string, any>;
    static toObject(param: Record<string, any>): Record<string, any>;
    static dot(object: Record<string, any>, prepend?: string): Record<string, any>;
    static contains(haystack: string, needles: string | string[], ignoreCase?: boolean): boolean;
    static objectIncludeIn(item: any, data: Record<string, any>): Record<string, any>;
    static objectIntersectKey<T>(array: Record<string, T>, keys: string[]): Record<string, T>;
    static objectReplaceRecursive(target: Record<string, any>, source: Record<string, any>): Record<string, any>;
}