docs: public CreateProjectRequest withSecondarySources(ProjectSource... secondarySources) {
          if (this.secondarySources == null) {
              setSecondarySources(new java.util.ArrayList<ProjectSource>(secondarySources.length));
          }
          for (ProjectSource ele : secondarySources) {
              this.secondarySources.add(ele);
          }
          return this;
      }