def __init__(self, root, unsafeTracebacks=False, security=globalSecurity):
        self.root = IPBRoot(root)
        self.unsafeTracebacks = unsafeTracebacks
        self.security = security
@param root: factory providing the root Referenceable used by the broker.
dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/spread/pb.py/PBServerFactory.__init__