```ruby
#
# Author:: Stuart Preston (<stuart@chef.io>)
# Copyright:: Copyright (c) 2018, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

Ohai.plugin :SystemEnclosure do
  provides "system_enclosure"

  collect_data(:windows) do
    require "wmi-lite/wmi"
    system_enclosure Mash.new
    wmi = WmiLite::Wmi.new
    wmi_object = wmi.first_of("Win32_SystemEnclosure").wmi_ole_object
    wmi_object.properties_.each do |property|
      value = wmi_object.invoke(property.name)
      system_enclosure[property.name.downcase] = value unless value.nil?
    end
  end
end
```

Address review feedback, minimize returned data
user
```ruby
#
# Author:: Stuart Preston (<stuart@chef.io>)
# Copyright:: Copyright (c) 2018, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

Ohai.plugin :SystemEnclosure do
  provides "system_enclosure"

  collect_data(:windows) do
    require "wmi-lite/wmi"
    system_enclosure Mash.new
    wmi = WmiLite::Wmi.new
    wmi_object = wmi.first_of("Win32_SystemEnclosure").wmi_ole_object
    system_enclosure[:manufacturer] = wmi_object.invoke("manufacturer")
    system_enclosure[:serialnumber] = wmi_object.invoke("serialnumber")
  end
end
```
assistant