sccode = """
SynthDef.new(\\combDelay,
{|bus, echo, beat_dur, echotime|
var osc;
osc = In.ar(bus, 2);
osc = osc + CombL.ar(osc, delaytime: echo * beat_dur, maxdelaytime: 2 * beat_dur, decaytime: echotime * beat_dur);
ReplaceOut.ar(bus, osc)}).add;
"""

effect = SCEffect(
    shortname="echo",
    fullname="combDelay",
    description="Combdelay effect",
    code=sccode,
    arguments={
        "echo": 0,
        "beat_dur": 1,
        "echotime": 1
    },
    order=2,
)