Worked on the Tokio repository to enhance developer experience by improving documentation for the Handle::block_on API. Focused on clarifying the specific conditions under which the function panics, such as future panics, invocation within an async context, or use of timer futures on a shut-down runtime. Added a practical example demonstrating how to safely re-enter an async context by combining task::block_in_place with Handle::block_on on a multi-thread scheduler. This work, implemented in Rust and leveraging asynchronous programming expertise, aimed to reduce onboarding friction and promote safer usage patterns for the Tokio runtime, with an emphasis on clear, actionable guidance.