XMLRPC Client xmlrpc_client import xmlrpclib xmlrpclib.Server('http://$(addr()):$(port)') $(callback())($variable) Address addr localhost string Port port 8080 int Callback callback set_ string Variable variable raw This block will create an XMLRPC client. \ The client will execute the callback on the server when the variable is changed. \ The callback should be a the name of a function registered on the server. \ The variable should be an expression containing a the name of a variable in flow graph.