message: fix(core): add multisig type param on add wallet
  Wallet Platform supports a new multisig type param when adding a wallet
diff: @@ -91,6 +91,7 @@ export interface AddWalletOptions {
  disableTransactionNotifications?: boolean;
  gasPrice?: number;
  walletVersion?: number;
  + multisigType?: 'onchain' | 'tss' | 'blsdkg';
  }
  export interface ListWalletOptions extends PaginationOptions {
  @@ -248,6 +249,10 @@ export class Wallets {
  walletParams.disableTransactionNotifications = params.disableTransactionNotifications;
  }
  + if (params.multisigType) {
  + walletParams.multisigType = params.multisigType;
  + }
  +
  const newWallet = await this.bitgo.post(this.baseCoin.url('/wallet')).send(walletParams).result();
  return {
  wallet: new Wallet(this.bitgo, this.baseCoin, newWallet),
  