export declare const TextFunctions: {
    JOIN: (params: Array<any>, split: string) => string;
    CONCATENATE: (...args: Array<string>) => string;
    EXACT: (text_1: string, text_2: string) => boolean;
    ISEMPTY: (target: any) => boolean;
    LEFT: (text: string | undefined, slice: number) => string;
    LEN: (text: string) => number;
    LOWER: (text?: string) => string;
    MID: (text: string, start: number, end: number) => string;
    REPLACE: (text: string | undefined, start: number, end: number, target: string) => string;
    REPT: (text: string, times: number) => string;
    RIGHT: (text: string | undefined, lens: number) => string;
    SEARCH: (text1?: string, text2?: string) => number;
    SPLIT: (text?: string, split?: string) => string[];
    TEXT: (number: number, text_format?: string) => any;
    TRIM: (text?: string) => string;
    UPPER: (text?: string) => string;
    VALUE: (text?: string) => number;
};