import { IQueryResultData, IColumn, DraftColumnType, ChartType, IRowValue } from './chartModels';
export declare class Utilities {
    static getColumnIndex(queryResultData: IQueryResultData, columnToFind: IColumn): number;
    /**
    * Returns the stored time value in milliseconds since midnight, January 1, 1970 UTC
    * @param dateStr - The string value that represents the date
    * @returns The date value in milliseconds since midnight, January 1, 1970 UTC
    */
    static getDateValue(dateStr: string): number;
    static isValidDate(str: string): boolean;
    static isNumeric(columnType: DraftColumnType): boolean;
    static isDate(columnType: DraftColumnType): boolean;
    static areColumnsEqual(first: IColumn, second: IColumn): boolean;
    static isPieOrDonut(chartType: ChartType): boolean;
    static escapeStr(value: IRowValue): IRowValue;
}