'Registers an instance to respond to XML-RPC requests.
Only one instance can be installed at a time.
If the registered instance has a _dispatch method then that
method will be called with the name of the XML-RPC method and
its parameters as a tuple
e.g. instance._dispatch(\'add\',(2,3))
If the registered instance does not have a _dispatch method
then the instance will be searched to find a matching method
and, if found, will be called. Methods beginning with an \'_\'
are considered private and will not be called by
SimpleXMLRPCServer.
If a registered function matches a XML-RPC request, then it
will be called instead of the registered instance.
If the optional allow_dotted_names argument is true and the
instance does not have a _dispatch method, method names
containing dots are supported and resolved, as long as none of
the name segments start with an \'_\'.
*** SECURITY WARNING: ***
Enabling the allow_dotted_names options allows intruders
to access your module\'s global variables and may allow
intruders to execute arbitrary code on your machine.  Only
use this option on a secure, closed network.'

def register_instance(self, instance, allow_dotted_names=False):

    self.instance = instance
    self.allow_dotted_names = allow_dotted_names
