docs: public CreateCommitResult withFilesAdded(FileMetadata... filesAdded) {
          if (this.filesAdded == null) {
              setFilesAdded(new java.util.ArrayList<FileMetadata>(filesAdded.length));
          }
          for (FileMetadata ele : filesAdded) {
              this.filesAdded.add(ele);
          }
          return this;
      }