regarding linked issue attachments

[Shubhangi Nikam]

I am developing a custom plugin in which I need to paste the last attachment of the source issue to the linked issue, but that linked issue Type will be blocks and bug.

need to compare the issue comments last attachment and  all linked issue attachments

how can I get the linked issues attached files so that I can compare them with  source attachments, 

Is there any rest API available to get the all linked issue attachments?