[Static Runtime] Fixed visibility of ProcessedNode class and a newly added function (#61729)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/61729
Test Plan: Imported from OSS
Reviewed By: hlu1
Differential Revision: D29719644
Pulled By: navahgar
fbshipit-source-id: 27a77b2a281d1a8a48e2a9df1c254f62c0e2e7ef
