import { STM } from "@effect/core/stm/STM/definition/base";
import { Either } from "@tsplus/stdlib/data/Either/definition";
/**
 * "Zooms in" on the value in the `Left` side of an `Either`, moving the
 * possibility that the value is a `Right` to the error channel.
 * @tsplus getter effect/core/stm/STM left
 * @tsplus location "@effect/core/stm/STM/operations/left"
 */
export declare function left<R, E, A, B>(self: STM<R, E, Either<A, B>>): STM<R, Either<E, B>, A>;
//# sourceMappingURL=left.d.ts.map