message: fix return type for BlockstackNetwork.getAccountTokens
diff: @@ -517,7 +517,7 @@ export class BlockstackNetwork {
  * @return {Promise} a promise that resolves to an Array of Strings, where each item encodes the
  * type of token this account holds (excluding the underlying blockchain's tokens)
  */
  - getAccountTokens(address: string): Promise<string[]> {
  + getAccountTokens(address: string): Promise<{tokens: string[]}> {
  return fetch(`${this.blockstackAPIUrl}/v1/accounts/${address}/tokens`)
  .then((resp) => {
  if (resp.status === 404) {
  