docs: public void setSamplingTargetDocuments(java.util.Collection<SamplingTargetDocument> samplingTargetDocuments) {
          if (samplingTargetDocuments == null) {
              this.samplingTargetDocuments = null;
              return;
          }
  
          this.samplingTargetDocuments = new java.util.ArrayList<SamplingTargetDocument>(samplingTargetDocuments);
      }