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: project.rb
    path of file: ./repos/hackweek/app/models
    
    the code of the file until where you have to start completion: class Project < ApplicationRecord
  include AASM
 
    
  def add_keyword!(name, user)
    name.downcase!
    name.gsub!(/\s/, '')
    keyword = Keyword.find_by_name name
    keyword ||= Keyword.create! name: name
    unless keywords.include? keyword
      keywords << keyword
      save!
    end