```ruby
require "vagrant/free/memory/version"

module Vagrant
  module Free
    module Memory
      # Your code goes here...
    end
  end
end
```

Create the module for the plugin
user
```ruby
require 'vagrant-free-memory/version'

begin
  require 'vagrant'
rescue LoadError
  raise 'This plugin must run within Vagrant.'
end

module VagrantFreeMemory
  class Plugin < Vagrant.plugin('2')
    name 'vagrant-free-memory'
  end
end
```
assistant