import "expect-more-jest";
type Mock = {
    mock: {
        calls: any[][];
    };
};
export type CustomMatcherResult = {
    pass: boolean;
    message: () => string;
};
export declare function sleep(ms: number): Promise<void>;
export declare const Match: {
    byArgs: symbol;
    byFn: symbol;
};
export type Nullable<T> = (T | null);
export type ElementsWhichCanBeDisabled = HTMLInputElement | HTMLButtonElement | HTMLFieldSetElement | HTMLOptGroupElement | HTMLOptionElement | HTMLSelectElement | HTMLTextAreaElement;
export type Condition = (item: any) => boolean;
export declare function assert(expr: boolean, failMessage: string | (() => string)): string | (() => string);
export interface IHasIsNot {
    isNot: boolean;
}
export declare function runAssertions(ctx: IHasIsNot, func: () => string | (() => string)): CustomMatcherResult;
export declare function runAssertionsAsync(ctx: IHasIsNot, func: () => Promise<() => string>): Promise<{
    message: () => string;
    pass: boolean;
}>;
export declare function testIsInstance(actual: any, ctor: any): void;
export declare function notFor(self: any): " not " | " ";
export declare function prettyPrint(obj: object | any[]): string;
export interface VisibilityResult {
    isVisible: boolean;
    message: string;
}
export declare function isJestMock(a: any): any;
export declare function fetchSpyOrMockArgs(subject: Mock | jasmine.Spy | Function): any[][];
export declare function stringify(arg: any): string;
export {};