docstring_social_agent

[tangafua]

Description

Add docstring to the social_agent folder.

Checklist

Go over all the following points, and put an x in all the boxes that apply.

• I have read the CONTRIBUTION guide (required)
• I have linked this PR to an issue using the Development section on the right sidebar or by adding Fixes #issue-number in the PR description (required)
• I have checked if any dependencies need to be added or updated in pyproject.toml
• I have updated the tests accordingly (required for a bug fix or a new feature)
• I have updated the documentation if needed:
• I have added examples if this is a new feature

Note: If you are developing a new action for SocialAgent, please review the checklist below and mark all applicable items with an x. If you're not adding a new action, you can skip this section.

• I have added the new action to ActionType in typing.py.
• I have added a corresponding test or a similar function, as shown in test_user_create_post.py.
• I have included the new ActionType in both test_action_docstring.py and test_twitter_user_agent_all_actions.py.
• I have documented the new action in actions.mdx; the Mintlify GitHub app will deploy the changes automatically.

If you are unsure about any of these, don't hesitate to ask. We are here to help!