code: def all_node_style(self, **kwargs):
          '''
          Modifies all node styles
          '''
          for node in self.nodes:
              self.node_style(node, **kwargsf all_node_style(self, **kwargs):
          '''
          Modifies all node styles
          '''
          for node in self.nodes:
              self.node_style(node, **kwargs)
docs: Modifies all node styles