export declare function createRegExp(value: unknown): RegExp | undefined;
export declare function regexpExtract(text: string, regexp: RegExp | string): string | null;
export declare function regexpExtractAll(text: string, regexp: RegExp | string): string[] | null;
export declare function regexpReplace(text: string, regexp: RegExp, replace: string): string;
export declare function regexpTest(text: string, pattern: string): boolean | null;