import { Assertion } from '../test';
export type AssertionAPI = {
    pass: (description?: string) => void;
    fail: (description?: string) => void;
    isTrue: (condition: boolean, description?: string) => void;
    isFalse: (condition: boolean, description?: string) => void;
    equal: (actual: any, expected: any, description?: string) => void;
    isError: (actual: any, expected: any, description?: string) => void;
    errorsEquivalent: (actual: any, expected: any, description?: string) => void;
    throws: (experiment: () => any, expectedErr: Error | RegExp, description?: string) => Promise<void>;
};
export declare function createAssertionPredicates(assertions: Assertion[]): AssertionAPI;