Method drop_or_convert

xarray/core/dataset.py:4939–4946

(var_names)

        new_variables: dict[Hashable, Variable] = {}

        def drop_or_convert(var_names):
            if drop:
                drop_variables.update(var_names)
            else:
                base_vars = {
                    k: self._variables[k].to_base_variable() for k in var_names
                }
                new_variables.update(base_vars)

        for name in dims_or_levels:
            index = self._indexes[name]