'@param schema: A schema object
@type schema: L{xsd.schema.Schema}
@param xstq: The B{x}ml B{s}chema B{t}ype B{q}ualified flag indicates
that the I{xsi:type} attribute values should be qualified by namespace.
@type xstq: bool'

def __init__(self, schema, xstq=True):

    Core.__init__(self)
    self.schema = schema
    self.xstq = xstq
    self.resolver = GraphResolver(self.schema)
