serialName

Serial name of the descriptor that identifies a pair of the associated serializer and target class.

For generated and default serializers, the serial name should be equal to the corresponding class's fully-qualified name or, if overridden, SerialName. Custom serializers should provide a unique serial name that identifies both the serializable class and the serializer itself, ignoring type arguments, if they are present, for example: my.package.LongAsTrimmedString