**Bug Fix:**
- Fix a bug in kubeconfig loader where NoneType gets iterated [kubernetes-client/python-base158](https://github.com/kubernetes-client/python-base/pull/158)
- Fix a bug in kubeconfig loader that False value gets treated as absence [kubernetes-client/python-base161](https://github.com/kubernetes-client/python-base/pull/161)
- Fix a bug in kubeconfig loader where merging valid configs fails if fields are missing [kubernetes-client/python-base163](https://github.com/kubernetes-client/python-base/pull/163)
- Fix azure refresh token apiserver id [kubernetes-client/python-base170](https://github.com/kubernetes-client/python-base/pull/170)
- Support chunked listing to custom object API [kubernetes-client/gen130](https://github.com/kubernetes-client/gen/pull/130)
**New Feature:**
- Add returncode method to WSClient [kubernetes-client/python-base160](https://github.com/kubernetes-client/python-base/pull/160)
- Add proxy support to WSClient [kubernetes-client/python-base157](https://github.com/kubernetes-client/python-base/pull/157)
- Add util function to parse canonical quantities [kubernetes-client/python855](https://github.com/kubernetes-client/python/pull/855)