This function returns an issue list containing issues which are directly under epic of the current issue (i.e., Stories are included in the output, but their sub-tasks are not), excluding current issue. The current issue should be an issue directly under an epic, (i.e., it can't be a sub-task or an epic).
siblingIssuesUnderEpic() #Output: Issue list
Variant where you additionally define issues.
Duplicated issues are filtered from the output.
siblingIssuesUnderEpic(issue list issues) #Output: Issue list
Variant where you define issues_keys instead of issues.
Argument issue_keys is a comma separated list of issue keys.
Duplicated issues are filtered from output.
siblingIssuesUnderEpic(text issue_keys) #Output: Issue list