Adjust isHex with template return (#1103)

* Adjust isHex with template return

* Unneeded assignment

* CHANGELOG

* typo

* Additional HexString types

* Additional HexString inputs

* Use U8aLike as applicable

* typo

* Unneeded type

* HexString outputs

* Export types

packages/util-crypto/src/address/encodeMulti.ts

@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 import type { BN } from '@polkadot/util';
+import type { HexString } from '@polkadot/util/types';
 import type { Prefix } from './types';
 
 import { encodeAddress } from './encode';
@@ -13,6 +14,6 @@ import { createKeyMulti } from './keyMulti';
  * @description
  * Creates a Substrate multisig address based on the input address and the required threshold.
  */
-export function encodeMultiAddress (who: (Uint8Array | string)[], threshold: bigint | BN | number, ss58Format?: Prefix): string {
+export function encodeMultiAddress (who: (HexString | Uint8Array | string)[], threshold: bigint | BN | number, ss58Format?: Prefix): string {
   return encodeAddress(createKeyMulti(who, threshold), ss58Format);
 }