code: func (c *Client) GetAuth(accessToken string) (resp GetAuthResponse, err error) {
  	options := GetAuthOptions{
  		AccountIDs: []string{},
  	}
  	return c.GetAuthWithOptions(accessToken, options)
  }
docs: // GetAuth retrieves bank account and routing numbers associated with an Item's
  // checking and savings accounts, along with other information.
  // See https://plaid.com/docs/api/#auth.