/**
 * Converts a multihash (IPFS CIDv0) string to a hex string
 * @param multihash - The multihash string to convert
 * @returns The hex string
 *
 * @example
 * input: "QmSQDKRWEXZ9CGoucSTR11Mv6fhGqaytZ1MqrfHdkuS1Vg"
 * output: "0x12203c585c73d37158fa12f5b83f0af99d3d1a8072c9a5a6e3a289dc785b9da88687"
 */
export declare function ipfsCidV0ToHex(multihash: string): `0x${string}`;