export declare class CustomExpect {
    static defaultExceptionMsg: string;
    static expectToBeTruthy(condition: any, failMsg?: string): void;
    static expectToBeTrue(condition: any, failMsg?: string): void;
    static expectToBeFalsy(condition: any, failMsg?: string): void;
    static expectToBeFalse(condition: any, failMsg?: string): void;
    static expectToMatch(actualValue: any, expectedValue: any, failMsg?: string): void;
    static expectNotToMatch(actualValue: any, expectedValue: any, failMsg?: string): void;
    static expectToEqual(actualValue: any, expectedValue: any, failMsg?: string): void;
    static expectNotToEqual(actualValue: any, expectedValue: any, failMsg?: string): void;
    static expectToContain(mainString: any, substring: any, failMsg?: string): void;
    static expectNotToContain(mainString: any, substring: any, failMsg?: string): void;
    static expectToBe(actualValue: any, expectedValue: any, failMsg?: string): void;
    static expectNotToBe(actualValue: any, expectedValue: any, failMsg?: string): void;
    static expectToHaveLength(inputValue: any, expectedLength: number, failMsg?: string): void;
    static expectNotToHaveLength(inputValue: any, expectedLength: number, failMsg?: string): void;
}