Allow with_variant to take TypeEngine instance as well as the TypeEngine type directly like Column

[tapetersen]

Description

Allow with_variant to take TypeEngine instance as well as the TypeEngine type directly like Column. This to allow documented usage as in https://docs.sqlalchemy.org/en/14/core/type_basics.html#using-uppercase-and-backend-specific-types-for-multiple-backends

Fixes: #244

Checklist

This pull request is:

• A documentation / typographical error fix
  • Good to go, no issue or tests are needed
• A short code fix
  • please include the issue number, and create an issue if none exists, which
    must include a complete example of the issue. one line code fixes without an
    issue and demonstration will not be accepted.
  • Please include: Fixes: #<issue number> in the commit message
  • please include tests. one line code fixes without tests will not be accepted.
• A new feature implementation
  • please include the issue number, and create an issue if none exists, which must
    include a complete example of how the feature would look.
  • Please include: Fixes: #<issue number> in the commit message
  • please include tests.

Have a nice day!

[CaselIT]

Thanks for the fix.

will release the fix shortly

[CaselIT]

released as v0.0.2a30 https://github.com/sqlalchemy/sqlalchemy2-stubs/releases/tag/v0.0.2a30

[tapetersen]

Thanks for a fast response I hope I placed the tests in a reasonable place.