Add valid args, returns & raises docstring for the python files.

The aim of this issue is to implement valid docstring in methods (link below) to implement mandatory check for Args Returns Raises. Currently most of the files having valid docstrings but some files have missing/invalid format Args Returns Raises in their docstring. by solving this we can go ahead and work on #6081

To be assigned to a file or for any queries, comment on the thread and tag @aks681 .

PR’s for reference: #8288

We have created a list of files which need valid docstring:

• main.py - @Helper2020
• core/domain/story_domain.py @ananthanandanan

Completed:

• utils.py @arnesh07
• core/domain/exp_domain.py - @iamprayush
• core/domain/state_domain.py @abhayraghuwanshi
• core/controllers/base.py @nishantwrp
• core/domain/prod_validation_jobs_one_off.py @tyleri
• core/domain/story_domain_test.py @nadintamer
• core/jobs_registry.py @ahv15
• scripts/deploy.py @adrijaacharyya
• scripts/pre_commit_linter.py @KatherineAdair

you can check the docstring issues in this doc: https://docs.google.com/document/d/1OiZA4I5ETSDu2K_dYUk2whvdEhV_41exBlPZWdU8cDM/edit?usp=sharing

[abhayraghuwanshi]

@Showtim3 the Pr od state_domain got merged already Thanks

[Showtim3]

@Arnesh07 Assigned you…