Worked on the apache/pulsar repository to enhance the Go Pulsar client by developing a new feature that improves error handling during producer creation. Introduced the NewOutputMessageWithError method within FunctionContext, enabling the creation of a Pulsar producer for a topic while transparently propagating any initialization errors. This approach addressed previous gaps in error visibility and allowed for more robust upstream error handling. Comprehensive tests were added in Go to cover both successful and failure scenarios, ensuring reliability. The work focused on backend development, API design, and error handling, ultimately strengthening production resilience without requiring separate bug fixes during the period.