The lone _meta object carried by non-content structs (results, descriptors).
Mixed in so the _meta field and its emit/parse guards live once. Names are
distinct from ContentMetaFields' emitMeta/parseMeta to avoid clashes in
structs that could mix both.
The lone _meta object carried by non-content structs (results, descriptors). Mixed in so the _meta field and its emit/parse guards live once. Names are distinct from ContentMetaFields' emitMeta/parseMeta to avoid clashes in structs that could mix both.