```ruby
module IdGenerator
  def self.random_id
    (0...16).map { |x| rand(16).to_s(16) }.join
  end
end```

Use a more random ID.
user
```ruby
module IdGenerator
  def self.random_id
    (0...32).map { |x| rand(16).to_s(16) }.join
  end
end```
assistant