code: public Grammars createXSDTypesOnlyGrammars() throws EXIException {
  		grammarBuilder.loadXSDTypesOnlyGrammars();
  		SchemaInformedGrammars g = grammarBuilder.toGrammars();
  		g.setBuiltInXMLSchemaTypesOnly(true); // builtInXMLSchemaTypesOnly
  		return g;
  	}
docs: No user defined schema information is generated for processing the EXI
  body; however, the built-in XML schema types are available for use in the
  EXI body.
  
  @return built-in XSD EXI grammars
  @throws EXIException
  EXI exception