support nested nested ... structs

[yousefsalhamoud]

Description

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• I ran pytest and all tests pass
• I added new tests for my changes

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings (I have run ruff check . and ruff format .)
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes