message: Gain can also have min/max range
diff: @@ -8,6 +8,8 @@ interface GainOptions<TypeName extends UnitName> extends ToneAudioNodeOptions {
  gain: UnitMap[TypeName];
  units: TypeName;
  convert: boolean;
  + minValue?: number;
  + maxValue?: number;
  }
  /**
  @@ -50,6 +52,8 @@ export class Gain<TypeName extends "gain" | "decibels" | "normalRange" = "gain">
  param: this._gainNode.gain,
  units: options.units,
  value: options.gain,
  + minValue: options.minValue,
  + maxValue: options.maxValue,
  });
  readOnly(this, "gain");
  }
  