code: func (c *Client) CreateNewAccountAsync(account string) FutureCreateNewAccountResult {
  	cmd := btcjson.NewCreateNewAccountCmd(account)
  	return c.sendCmd(cmd)
  }
docs: // CreateNewAccountAsync returns an instance of a type that can be used to get the
  // result of the RPC at some future time by invoking the Receive function on the
  // returned instance.
  //
  // See CreateNewAccount for the blocking version and more details.