[question] where or how can I get the jsonix types schema

Hi! I'm trying to convert an xml schema to graphql schema, everything goings fine but I have this problem: the Duration definition, for example is a jsonix definition, so I can't get the schema to describe it, where or how can I get the schema like this:
```
name: 'global',
typeInfos: [{
localName: 'TheObjectName',
typeName: {....},
propertyInfos: [{
name: 'theObjectName',
required: true,
.....
}]
```
this _fragment_ was extracted from class file generated with the jsonix-schema-compiler-full.jar
the Jsonix.Schema.XSD[.....].INSTANCE (Jsonix.Schema.XSD.Duration.Instance for example) not have enough information