[Breaking Change]: Remove save file func

[Milind220]

This PR will address the breaking change of removing the save to file functionality that Ozone currently offers.

[Milind220]

Work that needs to be done:

• Modify tests to work with lack of save file feature.
• Re recording cassettes to make tests work

[Milind220]

@lahdjirayhan I believe this PR is complete :) I'll check again tomorrow

[lahdjirayhan]

The presence of * will force users to give city or city_id by name. Giving arguments by position will raise an error.
See

In my opinion, this avoids mixing up whether the user is giving a city or city_id.

But I think getting rid of it is also fine since the arguments are checked immediately.

[lahdjirayhan]

@Milind220

Looks good to me!

Could you also please update the README because I think there's an example that still shows data_format argument being used.

[Milind220]

@lahdjirayhan Hey, any idea why the linter checks might be failing?

EDIT: nvm I think this next commit should fix that. flake8 lint was flagging an unused import (I think my pre-commit hooks weren't working - reinstalled them now)

[Milind220]

Okay I'm trying to solve some merge conflicts lol - excuse me if this gets a little messy.

EDIT: Hopefully this fixed it hahaha