Map field names of records Mapping is done after applying [@key] attribute.

Default is identity

Map variant and constructor names. Mapping is done after applying [@name] attribute.

Default is identity

Map constructors with no arguments to a string. If true, constructors without arguments are mapped to a string, instead of than a list containing only the constructor / variant name.

Default is true

Omit default values from output. If true, default values are not serialized. Note that this uses polymorphic compare to determine if a field value is the same as the default value.

Default is true

Lazy evaluate lazy fields. If true, lazy fields are parsed eagerly. If false, lazy fields are parsed first when forced, which means they will hold the serialized structure until forced, and forcing might raise a parse error.

Default is true

Fail if unknown fields are encountered when deserialising records.

Default is false