import { IComparer, IEqualityComparer } from './_types';
export default class CaseInsensitiveStringComparer implements IComparer<string>, IEqualityComparer<string> {
    compare(x: string, y: string): number;
    equals(x: string, y: string): boolean;
    greaterThan(x: string, y: string): boolean;
    greaterThanOrEqual(x: string, y: string): boolean;
    lessThan(x: string, y: string): boolean;
    lessThanOrEqual(x: string, y: string): boolean;
}