Get Comment Property Keys

Returns the keys of all the properties of a comment.This operation can be accessed anonymously.**[Permissions](#permissions) required:** * *Browse projects* [project permission](https://confluence.atlassian.com/x/yodKLg) for the project. * If [issue-level security](https://confluence.atlassian.com/x/J4lKLg) is configured, issue-level security permission to view the issue. * If the comment has visibility restrictions, belongs to the group or has the role visi...