How to get deleted planItems via JIRA Rest API?

[yang li]

I want to know how to get deleted planItems via JIRA Rest API.
I am using the word "planItem" referring to "Plan Time" which can be inputted from Tempo "Plan Time". 
I am trying to integrate JIRA data with extenal system(Splunk).
So it is important to identify those deleted planItems to make sure the planned hours are always correct in Splunk.
For worklogs, I could get IDs of the deleted worklog using JIRA API, but for planItems(Planned Time), I could not find a way to do so.
Does anyone have any idea on this?

[Nic Brough -Adaptavist-]

We don't know what your "planitems" are, as it's not something in plain Jira, you'll need to explain them

[yang li]

Thank you for the reply.
I am using the word "planItem" referring to "Plan Time" which can be inputted from Tempo "Plan Time". 
I am using Tempo to input the plan time and worklogs.
For worklogs, I could get IDs of the deleted worklog using JIRA REST API.
For "planItem"(Plan Time), I could not find a way to do so.

[Nic Brough -Adaptavist-]

I don't think Tempo keeps them, and hence can't expose them over REST.

[yang li]

Thank you for the reply.
Then I shall try to catch the deleted Planned time by coding.