/*!
 * Copyright (c) Microsoft Corporation and contributors. All rights reserved.
 * Licensed under the MIT License.
 */
export declare const ApiLevel: {
    readonly public: "public";
    readonly beta: "beta";
    readonly alpha: "alpha";
    readonly internal: "internal";
    readonly legacyAlpha: "legacyAlpha";
    readonly legacyBeta: "legacyBeta";
    readonly legacyPublic: "legacyPublic";
};
export type ApiLevel = (typeof ApiLevel)[keyof typeof ApiLevel];
/**
 * Tuple of {@link ApiLevel}s
 *
 * @remarks Sorted by the preferred order that respective imports would exist.
 * public is effectively "" for sorting purposes and then all are arranged
 * alphabetically as most formatters would prefer.
 */
export declare const knownApiLevels: readonly ["public", "alpha", "beta", "internal", "legacyPublic", "legacyBeta", "legacyAlpha"];
/**
 * Checks string to see if it is an {@link ApiLevel}.
 *
 * @param level - potential {@link ApiLevel} string
 * @returns true when level exactly matches a known {@link ApiLevel}
 */
export declare function isKnownApiLevel(level: string): level is ApiLevel;
export declare function isLegacy(level: ApiLevel): boolean;
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