def traverse_depth_first_pre_order(self, callback):
            callback(self)
            for k in self.children:
                self.children[k].traverse_depth_first_pre_order(callback)
Generates URL at which user will login to authorize the request token.
dataset/ETHPy150Open mikhaildubov/AST-text-analysis/east/asts/ast.py/AnnotatedSuffixTree.Node.traverse_depth_first_pre_order--crossover with--dataset/ETHPy150Open acil-bwh/SlicerCIP/Scripted/attic/PicasaSnap/gdata/service.py/GDataService.GenerateOAuthAuthorizationURL