interface StringAssertions {
    containing: (expected: string) => void;
    startingWith: (expected: string) => void;
    endingWith: (expected: string) => void;
    containingAllOf: (expected: Iterable<string>) => void;
    containingAnyOf: (expected: Iterable<string>) => void;
    empty: () => void;
    matching: (expected: RegExp) => void;
}
export type { StringAssertions };