import { STM } from "@effect/core/stm/STM/definition/base";
/**
 * Returns a new effect where the error channel has been merged into the
 * success channel to their common combined type.
 * @tsplus getter effect/core/stm/STM merge
 * @tsplus location "@effect/core/stm/STM/operations/merge"
 */
export declare function merge<R, E, A>(self: STM<R, E, A>): STM<R, never, E | A>;
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