anchor.diff:  
     """The ref's prefix, such as `refs/heads/` or `refs/tags/`."""
     prefix: String!
  +
  +  """Branch protection rules that are viewable by non-admins"""
  +  refUpdateRule: RefUpdateRule
   
     """The repository the ref belongs to."""
     repository: Repository!
  
positive.code:   user: User
  }
  
  """Represents information about the GitHub instance."""
  type GitHubMetadata {
    """Returns a String that's a SHA of `github-services`"""
  
negative.code:     first: Int = 3
    ): [Topic!]!
  
    """
    Returns a count of how many stargazers there are on this object
    
    """
    stargazerCount: Int!
  
    """A list of users who have starred this starrable."""
    stargazers(
      """Returns the elements in the list that come after the specified cursor."""
  