@staticmethod
def param_set(param):
    """
        ``param_set <instance_number> <param_symbol> <param_value>``

        set a value to given control

        e.g.::

            param_set 0 gain 2.50

        :param Lv2Param param: Parameter that will be updated your value
        """
    instance = param.effect.instance
    return 'param_set {} {} {}'.format(instance, param.symbol, param.value)
