/** * Copyright (c) Meta Platforms, Inc. and affiliates. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. * * */ import type { CSSUnparsedValue } from './CSSUnparsedValue'; export declare class CSSVariableReferenceValue { static _validateVariableName(variable: string): void; _variable: string; _fallback: CSSUnparsedValue | null; constructor(variable: string, fallback?: CSSUnparsedValue); get variable(): string; set variable(variable: string); get fallback(): CSSUnparsedValue | null; toString(): string; }