Authentication with MCP server tools

As per this specification https://google.github.io/adk-docs/tools/authentication/ I would like to know, if there is some roadmap for having this implemented in ADK itself (as it seems that Python version is already processing this functionality as pull request here https://github.com/google/adk-python/pull/2061), or if is there some best-practice/workaround for developers using this library who are in need to seamlessly set communication between agent and OAuth-protected MCP server. Many thanks for any reply.