Added type annotation to the from_connection_string() method in _blob_service_client.py

[alherm7]

This helps mypy detect the right class. Also it will help VS Code intellisense get the right code suggestions.

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[ghost]

Thank you for your contribution alherm7! We will review the pull request and get back to you soon.

[jalauzon-msft]

Hi @alherm7, thanks for your contribution! This is definitely a valid issue and something that we need to fix up. That being said, there are actually quite a few a places in the code where this needs to be adjusted so we should take care of all of them at once. Additionally, we'll need to tweak your change just a little since you are now mixing the two different styles of type hints.

Instead of asking you to do all this, I'll just go ahead and submit a change soon to fix this as well as the other instances of this issue. Thanks.

EDIT: Here's the PR #26611. It covers a bit of extra stuff but should cover this as well.

[jalauzon-msft]

Closing this as its covered in #26611.