export declare type StringOrRegExp = string | RegExp;
export declare function hasUppercaseLetter(...values: string[]): boolean;
export declare function isKebabCase(...values: string[]): boolean;
export declare function isSnakeCase(...values: string[]): boolean;
export declare function kebabCaseToCamelCase(from: string): string;
export declare function lowercaseFirstLetter(value: string): string;
export declare function match(string: string, regex: RegExp): string | string[] | null;
export declare function removeExtraWhitespaces(value: string): string;
export declare function removeNewLines(value: string): string;
export declare function removeTabs(value: string): string;
export declare function replace(value: string, patterns: StringOrRegExp, replacement: string | Function): string;
export declare function replace(value: string, patterns: StringOrRegExp[], replacement: string | Function): string;
export declare function uppercaseFirstLetter(value: string): string;
export declare function isStringOrRegExp(value: any): value is StringOrRegExp;
export declare function isStringOrRegExpArray(value?: any): value is StringOrRegExp[];
export declare function toString(value: string | number): string;
export declare function repeatString(string: string, count: number, between?: string): string;