You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: user_query.rb
    path of file: ./repos/openproject/app/models/queries/users
    
    the code of the file until where you have to start completion: #-- copyright
# Open
    
  def default_scope
    # This seemingly duplication is necessary because of the builtin classes
    # * SystemUser
    # * DeletedUser
    # * AnonymousUser
    # inheriting from user. Without it, instances of those classes would show up.
    User.user
  end