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@effect-ts/system

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Effect-TS is a zero dependency set of libraries to write highly productive, purely functional TypeScript at scale.

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import type { Effect, UIO } from "./effect.js"; /** * Returns an effect that will be executed at most once, even if it is * evaluated multiple times. */ export declare function once<R, E, A>(self: Effect<R, E, A>, __trace?: string): UIO<Effect<R, E, void>>; //# sourceMappingURL=once.d.ts.map