export declare const string: {
    'String.capitalize': (val: string) => string;
    'String.upper': (val: string) => string;
    'String.lower': (val: string) => string;
    'String.repeat': (val: string, amount: number) => string;
    'String.startsWith': (val: string, sub: string) => number;
    'String.endsWith': (val: string, sub: string) => number;
    'String.trim': (val: string) => string;
    'String.split': (val: string, sub: string) => string[];
    'String.replace': (val: string, search: string, replacement: string) => string;
};