Create multiple subtasks with descriptions using a Script Listener

[Deleted user]

So, I would like to automatically create subtasks when opening a ticket in a specific project. However I would not like to create a new workflow or change any of the ones I currently have with additional post functions. I would like to this with ScriptRunner Script Listener. If someone has written a similar groovy script, please add it here so I can adapt it to my situation. Thanks in advance! :)