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: acl_add.rb
    path of file: ./repos/chef/knife/lib/chef/knife
    
    the code of the file until where you have to start completion: #
# Author:: Steven Danna (steve@chef.io)
# Author:: Jeremiah Snapp (jeremiah@chef.io)
# Copy
    
      def run
        member_type, member_name, object_type, object_name, perms = name_args

        if name_args.length != 5
          show_usage
          ui.fatal "You must specify the member type [client|group], member name, object type, object name and perms"
          exit 1
        end