Type Annotations for Boto3 B2BI

mypy-boto3-b2bi provides comprehensive type annotations for the AWS B2BI service client in `boto3`. It's part of the `mypy-boto3` collection, which generates type stubs for all `boto3` services, enhancing developer experience with static analysis and auto-completion. The current version is 1.42.3, and new versions are released frequently, typically mirroring `boto3` updates and `mypy-boto3-builder` releases.