def delete_value(self, label=None):
        """Delete the labelled value (or all values) on this Point

        Raises [IOTException](./Exceptions.m.html#IoticAgent.IOT.Exceptions.IOTException)
        containing the error if the infrastructure detects a problem

        Raises [LinkException](../Core/AmqpLink.m.html#IoticAgent.Core.AmqpLink.LinkException)
        if there is a communications problem between you and the infrastructure

        `label` (optional) (string) the label for the value you want to delete. If not specified, all values for this
        point will be removed.
        """
        evt = self._client._request_point_value_delete(self.__lid, self.__pid, self._type, label=label)
        self._client._wait_and_except_if_failed(evt)
Delete the labelled value (or all values) on this Point

        Raises [IOTException](./Exceptions.m.html#IoticAgent.IOT.Exceptions.IOTException)
        containing the error if the infrastructure detects a problem

        Raises [LinkException](../Core/AmqpLink.m.html#IoticAgent.Core.AmqpLink.LinkException)
        if there is a communications problem between you and the infrastructure

        `label` (optional) (string) the label for the value you want to delete. If not specified, all values for this
        point will be removed.