s = v

        return effect_scale(s,self.devs )

        return self.function(inputs)

def effect_scale(strength: float, devs: DeviceSettings) -> DeviceSettings:

    out = []

    for d,da,v in devs.asList():

        out.append((d, da, scale(v, strength)))

    return DeviceSettings(devs.graph, out)

@dataclass

class EffectEval:

    """

    runs one effect's code to turn effect attr settings into output

    device settings. No effect state; suitable for reload().

    """