docs: public AudioChannelMapping withInputChannelLevels(InputChannelLevel... inputChannelLevels) {
          if (this.inputChannelLevels == null) {
              setInputChannelLevels(new java.util.ArrayList<InputChannelLevel>(inputChannelLevels.length));
          }
          for (InputChannelLevel ele : inputChannelLevels) {
              this.inputChannelLevels.add(ele);
          }
          return this;
      }