Question License for distributed extension

[jimlongo56]

Does Plesk require, or suggest a license to be used with Extensions developed by other parties.

I notice that your sample extensions use this license

Copyright 1999-2017. Parallels IP Holdings GmbH.
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.

Is that what you recommend, or do you require certain terms?
Or are the terms up to the developers?

Thanks.