/**
 * @file      Npm.Effect.Internal.ts
 * @author    Gage Sorrell <gage@sorrell.sh>
 * @copyright (c) 2026 Gage Sorrell
 * @license   MIT
 */
import type { Path as EffectPath, FileSystem } from "@effect/platform";
import type { PlatformError } from "@effect/platform/Error";
import { Effect } from "effect";
/**
 * Returns whether a given {@link Value} contains a `readonly` `string` `"code"`.
 *
 * @param Value - The value to test.
 * @returns {Value is { readonly code: string }} Whether {@link Value} is a
 * `{ readonly code: string }`.
 */
export declare function HasErrorCode(Value: unknown): Value is {
    readonly code: string;
};
/**
 * Starting at {@link Directory}, traverse upward until the root directory of a NodeJS package is found,
 * then return the path to that directory.
 *
 * @param Fs - The {@link FileSystem.FileSystem} service.
 * @param Path - The {@link EffectPath.Path | Path} service.
 * @param Directory - The path of the directory from which this begins to search.
 * @returns {Effect.Effect<string | undefined, PlatformError>} An {@link Effect.Effect | effect} which
 * finds the nearest package directory.
 */
export declare function FindNearestPackageDirectory(Fs: FileSystem.FileSystem, Path: EffectPath.Path, Directory: string): Effect.Effect<string | undefined, PlatformError>;
/**
 * Starting at {@link Directory} within a given `npm` package, traverse upward until
 * the `node_modules` directory containing the dependencies of the given `npm` package is found.
 *
 * @param Fs - The {@link FileSystem.FileSystem} service.
 * @param Path - The {@link EffectPath.Path | Path} service.
 * @param Directory - The path of the directory from which this begins to search.
 * @returns {Effect.Effect<string | undefined, PlatformError>} An {@link Effect.Effect | effect} which
 * finds the nearest `node_modules` directory.
 */
export declare function FindNearestNodeModulesDirectory(Fs: FileSystem.FileSystem, Path: EffectPath.Path, Directory: string): Effect.Effect<string | undefined, PlatformError>;
/**
 * For a given {@link Path}, get the {@link FileSystem.File.Type | type} of the object at that path.
 *
 * @param Fs - The {@link FileSystem.FileSystem | FileSystem} service.
 * @param Path - The path whose type is returned by this.
 * @returns {Effect.Effect<FileSystem.File.Type | undefined, PlatformError>} An
 * {@link Effect.Effect | effect} that finds the {@link FileSystem.File.Type | type} of the
 * given {@link Path}.
 */
export declare function GetPathType(Fs: FileSystem.FileSystem, Path: string): Effect.Effect<FileSystem.File.Type | undefined, PlatformError>;
/**
 * For a given {@link Directory}, if that directory has a parent directory, then return
 * the path to the parent directory, otherwise return `undefined`.
 *
 * @param Path - The {@link EffectPath.Path | Path} service.
 * @param Directory - The path of the directory whose parent path is found, if it exists.
 * @returns {string | undefined} The path of the parent directory of the given {@link Directory},
 * if it has a parent directory (otherwise `undefined`).
 */
export declare function GetParentDirectory(Path: EffectPath.Path, Directory: string): string | undefined;
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