code: def name(self, node, children):
          'name = ~"[a-z]+" _'
          return self.env.get(node.text.strip(), -1f name(self, node, children):
          'name = ~"[a-z]+" _'
          return self.env.get(node.text.strip(), -1)
docs: name = ~"[a-z]+" _