This class is missing documentation.
GrainBufJ.ar(numChannels: 1, trigger: 0, dur: 1, sndbuf, rate: 1, pos: 0, loop: 0, interp: 2, grainAmp: 1, pan: 0, envbufnum: -1, maxGrains: 512, mul: 1, add: 0)
.init(argNumChannels ... theInputs)
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