code: func (c *Client) AddSSHUser(account, repo string, buildNum int) (*Build, error) {
  	build := &Build{}
  
  	err := c.request("POST", fmt.Sprintf("project/%s/%s/%d/ssh-users", account, repo, buildNum), build, nil, nil)
  	if err != nil {
  		return nil, err
  	}
  
  	return build, nil
  }
docs: // AddSSHUser adds the user associated with the API token to the list of valid
  // SSH users for a build.
  //
  // The API token being used must be a user API token