def noise(t):

    return pnoise1(t % 1000.0, 2)

def clamp(lo, hi, x):

    return max(lo, min(hi, x))

def clamp255(x):

    return min(255, max(0, x))

def _8bit(f):

    if not isinstance(f, (int, float)):

        raise TypeError(repr(f))

    return clamp255(int(f * 255))

@dataclass

class EffectEval2:

    graph: SyncedGraph

    uri: EffectUri

    def __post_init__(self):

        self.graph.addHandler(self._compile)

        self.effectFunction = L9['todo']

    def _compile(self):

        if not self.graph.contains((self.uri, RDF.type, L9['Effect'])):

            raise ValueError(f'{self.uri} not an :Effect')

        devs = []

        for s in self.graph.objects(self.uri, L9['setting']):

            v = typedValue(VTUnion, self.graph, s, L9['value'])

            devs.append((d, da, v))

        self.devs = DeviceSettings(self.graph, devs)

            if not isinstance(v, float):

                raise TypeError

                s = v

        return self.function(inputs)

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

    out = []

        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().

    """

    graph: SyncedGraph

    effect: EffectClass

    simpleOutputs: SimpleOutputs

    def outputFromEffect(self, effectSettings: BareEffectSettings, songTime: float, noteTime: float) -> Tuple[DeviceSettings, Dict]:

        """

        From effect attr settings, like strength=0.75, to output device

        settings like light1/bright=0.72;light2/bright=0.78. This runs

        the effect code.

        """

        # todo: what does the next comment line mean?

        # both callers need to apply note overrides

        strength = float(effectSettings.s[EffectAttr(L9['strength'])])

        if strength <= 0:

            return DeviceSettings(self.graph, []), {'zero': True}

        report = {}