During May 2026, this developer enhanced the observeinc/terraform-provider-observe repository by delivering flexible REST API representations for DatasetRef, supporting both flat and nested data structures. The implementation unified handling of these formats, introducing validation logic to ensure data integrity and updating the test suite to cover both representations. By enabling clients to choose between flat and nested DatasetRef shapes, the work improved integration options and streamlined future maintenance. The project was developed using Go, with a focus on robust API development and comprehensive testing practices. This contribution addressed evolving client needs while maintaining code quality and extensibility within the provider.