/**
 * Strip the hex prefix from a hex string
 * @param hex - The hex string to strip the prefix from
 * @returns The hex string without the prefix
 */
export declare function stripHexPrefix(hex: string): string;
/**
 * Ensure the hex string has 0x prefix
 * @param hex - The original hex string
 * @returns The hex string with 0x prefix
 */
export declare function addHexPrefix(hex: string): string;
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