docs: public void setUnrecognizedFaces(java.util.Collection<ComparedFace> unrecognizedFaces) {
          if (unrecognizedFaces == null) {
              this.unrecognizedFaces = null;
              return;
          }
  
          this.unrecognizedFaces = new java.util.ArrayList<ComparedFace>(unrecognizedFaces);
      }