declare namespace Ext {
    export namespace util {
        export interface FormatConfig {
        }

        export class Format extends Ext.Base  {
            public currencyAtEnd?: boolean;
            public currencyPrecision?: number;
            public currencySign?: string;
            public currencySpacer?: string;
            public decimalSeparator?: string;
            public defaultDateFormat?: any;
            public percentSign?: string;
            public thousandSeparator?: string;
            public attributes(attributes?: object): void;
            public capitalize(string?: string): string;
            public currency(value?: number | string, sign?: string, decimals?: number, end?: boolean, currencySpacer?: string): string;
            public date(value?: string | Date, format?: string): string;
            public dateRenderer(format?: string): CallableFunction;
            public defaultValue(value?: object, defaultValue?: string): string;
            public ellipsis(value?: string, length?: number, word?: boolean): string;
            public escape(string?: string): string;
            public escapeRegex(string?: string): string;
            public fileSize(size?: number | string): string;
            public format(string?: string, values?: any): string;
            public hex(value?: number, digits?: number): string;
            public htmlDecode(value?: string): string;
            public htmlEncode(value?: string): string;
            public leftPad(string?: string, size?: number, character?: string): string;
            public lessThanElse(value?: number, threshold?: number, below?: any, above?: any, equal?: any): any;
            public lowercase(value?: string): string;
            public math(): CallableFunction;
            public nbsp(value?: any, strict?: boolean): any;
            public nl2br(v?: string): string;
            public number(v?: number, formatString?: string): string;
            public numberRenderer(format?: string): CallableFunction;
            public or(value?: boolean, orValue?: any): void;
            public parseBox(box?: number | string): object;
            public percent(value?: number, formatString?: string): string;
            public pick(value?: boolean, firstValue?: any, secondValue?: any): void;
            public plural(value?: number, singular?: string, plural?: string): string;
            public round(value?: number | string, precision?: number): number;
            public sign(value?: number, negative?: any, positive?: any, zero?: any): any;
            public stripScripts(value?: object): string;
            public stripTags(value?: object): string;
            public substr(value?: string, start?: number, length?: number): string;
            public toggle(string?: string, value?: string, other?: string): string;
            public trim(string?: string): string;
            public uncapitalize(string?: string): string;
            public undef(value?: object): object;
            public uppercase(value?: string): string;
            public uri(value?: string): string;
            public uriCmp(value?: string): string;
            public usMoney(value?: number | string): string;
            public word(value?: string, index?: number, sep?: string | RegExp): string;
        }
    }
}