https://docs.atlassian.com/software/jira/docs/api/9.7.0/com/atlassian/jira/webtests/ztests/statistics/package-summary.html
com.atlassian.jira.webtests.ztests.statistics (Atlassian Jira - Server 9.7.0 API)
atlassian jirastatistics server
https://docs.atlassian.com/software/jira/docs/api/7.1.2/com/atlassian/jira/webtests/ztests/attachment/package-use.html
Uses of Package com.atlassian.jira.webtests.ztests.attachment (Atlassian JIRA 7.1.2 API)