def _cmake_unset(self, tline: CMakeTraceLine) -> None:
    if (len(tline.args) < 1):
        return self._gen_exception('unset', 'requires at least one argument', tline)
    if (tline.args[0] in self.vars):
        del self.vars[tline.args[0]]
def _cmake_unset(self, tline: CMakeTraceLine) -> None:
    if (len(tline.args) < 1):
        return self._gen_exception('unset', 'requires at least one argument', tline)
    if (tline.args[0] in self.vars):
        del self.vars[tline.args[0]]