> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt. ## 1.23.7 **`(fix):`** Fix MarshalJSON not being generated for inlined request types that have properties but no literals, dates, reference types, or extra properties. This caused the explicitFields tracking (used for explicit null serialization via setter methods) to be ineffective for simple request types.