code: def update_module(self, modname, underlined=None):
          
          try:
              pymodule = self.project.get_module(modname)
              self._add_names(pymodule, modname, underlined)
          except exceptions.ModuleNotFoundError:
              pass
docs: Update the cache for global names in `modname` module
  
          `modname` is the name of a module.