Actually, according to [SO](https://stackoverflow.com/questions/69994834/attributeerror-aioclientcreator-object-has-no-attribute-register-lazy-block/70028682), the

AioClientCreator

is due to botocore version. So I downgraded to botocore==1.22.5. But then I get another error:

The unspecified location constraint is incompatible for the region specific endpoint this request was sent to.

.