```ruby
module VagrantPlugins
  module Ohai
    module Helpers

      def chef_provisioners
        @machine.config.vm.provisioners.find_all {|provisioner|
            [:chef_client, :chef_solo].include? provisioner.name }
      end

    end
  end
end
```

Add support for new chef provisioners on Vagrant 1.7
user
```ruby
module VagrantPlugins
  module Ohai
    #
    module Helpers
      def chef_provisioners
        @machine.config.vm.provisioners.find_all do |provisioner|
          [:chef_client, :chef_solo, :chef_zero, :chef_apply].include? provisioner.type
        end
      end
    end
  end
end
```
assistant