import { TPriorityQueue } from "@effect/core/stm/TPriorityQueue/definition";
import { USTM } from "@effect/core/stm/STM/definition/base";
import { Maybe } from "@tsplus/stdlib/data/Maybe/definition";
/**
 * Peeks at the first value in the queue without removing it, returning `None`
 * if there is not a value in the queue.
 * @tsplus getter effect/core/stm/TPriorityQueue peekMaybe
 * @tsplus location "@effect/core/stm/TPriorityQueue/operations/peekMaybe"
 */
export declare function peekMaybe<A>(self: TPriorityQueue<A>): USTM<Maybe<A>>;
//# sourceMappingURL=peekMaybe.d.ts.map