import { Gen } from "@effect/core/testing/Gen/definition";
import { Effect } from "@effect/core/io/Effect/definition";
import { Maybe } from "@tsplus/stdlib/data/Maybe/definition";
/**
 * Runs the generator returning the first value of the generator.
 * @tsplus getter effect/core/testing/Gen runHead
 * @tsplus location "@effect/core/testing/Gen/operations/runHead"
 */
export declare function runHead<R, A>(self: Gen<R, A>): Effect<R, never, Maybe<A>>;
//# sourceMappingURL=runHead.d.ts.map