SAX.setDocumentLocator()
SAX.startDocument()
SAX.internalSubset(doc, , )
SAX.elementDecl(doc, 1, ...)
SAX.attributeDecl(doc, xmlns, 1, 4, http://www.example.com/, ...)
SAX.externalSubset(doc, , )
SAX.startElementNs(doc, NULL, 'http://www.example.com/', 1, xmlns='http://www.example.com/', 0, 0)
SAX.endElementNs(doc, NULL, 'http://www.example.com/')
SAX.endDocument()