import type { Effect } from "./effect"
/**
 * Returns this effect if environment is on the left, otherwise returns
 * whatever is on the right unmodified. Note that the result is lifted
 * in either.
 */
export declare function onLeft<C>(
  __trace?: string
): <R, E, A>(
  self: Effect<R, E, A>
) => Effect<import("../Either").Either<R, C>, E, import("../Either").Either<A, C>>
//# sourceMappingURL=onLeft.d.ts.map
