/**
 * Safely decodes a string using decodeURIComponent, ensuring it is not decoded multiple times.
 *
 * - If the input is already decoded, it returns the original value.
 * - If the input is encoded, it decodes it.
 * - Handles malformed input gracefully by returning the original value if decoding fails.

 * @param value - The input string to be decoded.
 * @returns - A safely decoded string.
 */
export declare function safeDecodeURIComponent(value: string): string;
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