def get_priority(self):
pass<EOL>
Gets the priority of this value.

        If the values for this parameter are not shuffled, the priority
        indicates a static ordering of the values from lowest to
        highest. If the values for this parameter are shuffled, the
        priority effects the weight with greater numbers having greater
        weights.

        return: (cardinal) - the index of this value
        *compliance: mandatory -- This method must be implemented.*