code: def _name(iris_obj, default='unknown'):
      
      return (iris_obj.var_name or iris_obj.standard_name or
              iris_obj.long_name or default)
docs: Mimicks `iris_obj.name()` but with different name resolution order.
  
      Similar to iris_obj.name() method, but using iris_obj.var_name first to
      enable roundtripping.