Allow render() to return self

[rsvarma95]

Description

Updated render() function in Blocks to return self

Please include:

• relevant motivation
• a summary of the change
• which issue is fixed.
• any additional dependencies that are required for this change.

Closes: #2484

Checklist:

• I have performed a self-review of my own code
• I have added a short summary of my change to the CHANGELOG.md
• My code follows the style guidelines of this project
• I have commented my code in hard-to-understand areas
• I have made corresponding changes to the documentation
• 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

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[rsvarma95]

Hi @abidlabs, can you please review the PR?

[abidlabs]

Thanks @Raul9595 for submitting, happy to review this!

[abidlabs]

Just a couple of quick notes -- the PR # needs to be updated, and perhaps we can add a quick test to ensure everything works as expected. Otherwise, LGTM! Since these are pretty quick, I'm happy to fix it myself and merge.

[abidlabs]

All tests are passing, thanks again @Raul9595!