@not_in_run<EOL><INDENT>def f_restore_default(self):<DEDENT>
self._idx = -<NUM_LIT:1><EOL>self._crun = None<EOL>for param in self._explored_parameters.values():<EOL><INDENT>if param is not None:<EOL><INDENT>param._restore_default()<EOL><DEDENT><DEDENT>
Restores the default value in all explored parameters and sets the
        v_idx property back to -1 and v_crun to None.