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: creator.rb
    path of file: ./repos/classroom/app/models/group
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class Group
  # Responsible for creating a Group and it's associated GitHub team.
  #
  class 
    
    def perform
      group = Group.new(title: @title, grouping: @grouping)
      group.create_github_team
      group.save!
      Result.success(group)
    rescue ActiveRecord::RecordInvalid, GitHub::Error => error
      group.silently_destroy_github_team
      Result.failed(error.message)
    end