import { MatcherState } from '@vitest/expect';

declare global {
    namespace jest {
        interface Matchers<R> {
            /**
             * Assert that a given OpenAPI definition is valid.
             *
             * @param transformer If you need to downgrade the given spec to test different usecase you
             *    can pass a transformer function. It takes a single argument, `spec`, that you should
             *    return.
             */
            toBeAValidOpenAPIDefinition(transformer?: (spec: Record<string, unknown>) => Record<string, unknown>): Promise<R>;
        }
    }
}
/**
 * Assert that a given OpenAPI definition is valid.
 *
 * @param definition
 * @param transformer If you need to transform the given spec to test different usecase you can
 * pass a transformer function. It takes a single argument, `spec`, that you should return.
 */
declare function toBeAValidOpenAPIDefinition(this: jest.MatcherUtils | MatcherState, definition: Record<string, unknown>, transformer?: (spec: Record<string, unknown>) => Record<string, unknown>): Promise<{
    message: () => string;
    pass: boolean;
}>;

export = toBeAValidOpenAPIDefinition;