import { Effect, Option } from "effect-app";
import { OptimisticConcurrencyException } from "../errors.js";
import type { PersistenceModelType, SupportedValues2 } from "./service.js";
export declare const makeETag: <E extends PersistenceModelType<{}>>({ _etag, ...e }: E) => E;
export declare const makeUpdateETag: (type: string) => <IdKey extends keyof E, E extends PersistenceModelType<{}>>(e: E, idKey: IdKey, current: Option.Option<E>) => Effect.Effect<E, OptimisticConcurrencyException, never>;
export declare function lowercaseIfString<T>(val: T): string | T;
export declare function compare(valA: unknown, valB: unknown): boolean;
export declare function lowerThan(valA: SupportedValues2, valB: SupportedValues2): boolean;
export declare function lowerThanExclusive(valA: SupportedValues2, valB: SupportedValues2): boolean;
export declare function greaterThan(valA: SupportedValues2, valB: SupportedValues2): boolean;
export declare function greaterThanExclusive(valA: SupportedValues2, valB: SupportedValues2): boolean;
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