code: def dump(self, backend, node):
          '''High-level function to call a `backend' on a `node' to generate
          code for module `module_name'.'''
          assert issubclass(backend, Backend)
          b = backend()
          b.attach(self)
          return b.run(nodef dump(self, backend, node):
          '''High-level function to call a `backend' on a `node' to generate
          code for module `module_name'.'''
          assert issubclass(backend, Backend)
          b = backend()
          b.attach(self)
          return b.run(node)
docs: High-level function to call a `backend' on a `node' to generate
          code for module `module_name'.