| ### What is this PR for? |
| A few sentences describing the overall goals of the pull request's commits. |
| First time? Check out the contributing guide - https://zeppelin.apache.org/contribution/contributions.html |
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| ### What type of PR is it? |
| [Bug Fix | Improvement | Feature | Documentation | Hot Fix | Refactoring] |
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| ### Todos |
| * [ ] - Task |
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| ### What is the Jira issue? |
| * Open an issue on Jira https://issues.apache.org/jira/browse/ZEPPELIN/ |
| * Put link here, and add [ZEPPELIN-*Jira number*] in PR title, eg. [ZEPPELIN-533] |
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| ### How should this be tested? |
| * Strongly recommended: add automated unit tests for any new or changed behavior |
| * Outline any manual steps to test the PR here. |
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| ### Screenshots (if appropriate) |
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| ### Questions: |
| * Does the licenses files need update? |
| * Is there breaking changes for older versions? |
| * Does this needs documentation? |
