code: public void useNamespace(SerializerContext serializerContext, ElementDescriptor<?> elementDescriptor)
  	{
  		useNamespace(serializerContext, elementDescriptor.qualifiedName.namespace);
  	}
docs: Inform the serializer that the given {@link ElementDescriptor} will be used. This allows the serializer to bind a prefix early.
  
  @param elementDescriptor
  The {@link ElementDescriptor} that will be used.