How to use the pypet.utils.decorators.deprecated function in pypet

    @deprecated(msg='Please use `v_is_leaf` instead.')
    def v_leaf(self):
        """Whether node is a leaf or not (i.e. it is a group node)

        DEPRECATED: Please use v_is_leaf!

        """
        return self.v_is_leaf

    @deprecated(msg='Please use property `v_is_root` instead.')
    def f_is_root(self):
        """Whether the group is root (True for the trajectory and a single run object)

        DEPRECATED: Please use property v_is_root!

        """
        return self.v_is_root

    @deprecated(msg='Please use `v_is_leaf` instead.')
    def v_leaf(self):
        """Whether node is a leaf or not (i.e. it is a group node)

        DEPRECATED: Please use v_is_leaf!

        """
        return self.v_is_leaf

    @deprecated('No longer supported')
    def v_no_data_string(self):
        """Whether or not to give a short summarizing string when calling
         :func:`~pypet.parameter.Result.f_val_to_str` or `__str__`.

        Can be set to `False` if the evaluation of stored data into string is too costly.

        DEPRECATED! Does not change anything. Data will always be printed.

        """
        self._logger.warning('`v_no_data_string is DEPRECATED. Changes of this property do no '
                             'longer have an effect. Data will always be printed.')
        return False

    @deprecated(msg='Please use function `f_supports_fast_access()` instead.')
    def v_fast_accessible(self):
        """Whether or not fast access can be supported by the Parameter or Result

        DEPRECATED: Please use function `f_supports_fast_access` instead!

        """
        return self.f_supports_fast_access()

    @deprecated(msg='Please use `f_has_range()` instead.')
    def f_is_array(self):
        """Returns true if the parameter is explored and contains a range array.

        DEPRECATED: Use `f_has_range()` instead.

        """
        return self.f_has_range()

    @deprecated('Please use assignment in environment constructor.')
    def f_switch_off_small_overview(self):
        """ Switches off small overview tables and switches off `purge_duplicate_comments`.

        DEPRECATED: Please pass whether to use the tables to the environment constructor.

        """
        self.f_set_small_overview(0)

    @deprecated(msg='Please use property `v_is_root` instead.')
    def f_is_root(self):
        """Whether the group is root (True for the trajectory and a single run object)

        DEPRECATED: Please use property v_is_root!

        """
        return self.v_is_root

    @deprecated(msg='Please use `v_is_parameter` instead.')
    def v_parameter(self):
        """Whether the node is a parameter or not (i.e. a result)

        DEPRECATED: Please use `v_is_parameter` instead!

        """
        return self.v_is_parameter

    @deprecated('Please use assignment in environment constructor.')
    def f_set_small_overview(self, switch):
        """Switches small overview tables on (`switch=True`) or off (`switch=False`). """
        switch = switch
        self._traj.config.hdf5.overview.parameters_overview = switch
        self._traj.config.hdf5.overview.config_overview = switch
        self._traj.config.hdf5.overview.explored_parameters_overview = switch