def get_edges(self): return [element_factory(edge) for edge in self.db.relationships if _is_existing_element(edge)]
def get_edges(self): return [ element_factory(edge) for edge in self.db.relationships if _is_existing_element(edge) ]
def get_vertices(self): nodes = self.db.nodes return [element_factory(node) for node in nodes if _is_existing_element(node)]
def get_vertices(self): nodes = self.db.nodes return [ element_factory(node) for node in nodes if _is_existing_element(node) ]