JSON.jlJSON Julia package repo.JSON.jlMigration guidesMigration guide from pre-1.0 -> 1.0Migration guide for JSON3.jlJSON ReadingCore JSON Parsing - JSON.lazy and JSON.LazyValueJSON.parse - Untyped materializationJSON.parse - Typed materializationAPI ReferenceJSON WritingCore JSON Serialization - JSON.jsonCustomizing JSON OutputCustomizing TypesCustomizing Struct SerializationHandling Circular ReferencesCustom Dictionary Key SerializationAdvanced Example: The FrankenStruct