import { STM } from "@effect/core/stm/STM/definition/base";
/**
 * Returns a new effect where boolean value of this effect is negated.
 * @tsplus getter effect/core/stm/STM negate
 * @tsplus location "@effect/core/stm/STM/operations/negate"
 */
export declare function negate<R, E>(self: STM<R, E, boolean>): STM<R, E, boolean>;
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