How to use the @jupyterlab/cells.CodeCellModel.defaultContentFactory function in @jupyterlab/cells

it('should be the code cell content factory used by the factory', () => {
          const factory = new CodeConsole.ModelFactory({});
          expect(factory.codeCellContentFactory).to.equal(
            CodeCellModel.defaultContentFactory
          );
        });
      });

it('should be the code cell content factory used by the factory', () => {
          const factory = new CodeConsole.ModelFactory({});
          expect(factory.codeCellContentFactory).to.equal(
            CodeCellModel.defaultContentFactory
          );
        });
      });

it('should be an ContentFactory', () => {
        expect(CodeCellModel.defaultContentFactory).to.be.a(CodeCellModel.ContentFactory);
      });

it('should be an ContentFactory', () => {
        expect(CodeCellModel.defaultContentFactory).to.be.an.instanceof(
          CodeCellModel.ContentFactory
        );
      });
    });

it('should be a code cell content factory', () => {
          expect(factory.codeCellContentFactory).to.equal(
            CodeCellModel.defaultContentFactory
          );
        });

it('should be an ContentFactory', () => {
        expect(CodeCellModel.defaultContentFactory).to.be.an.instanceof(
          CodeCellModel.ContentFactory
        );
      });
    });

constructor(options: ContentFactory.IOptions) {
      this.codeCellContentFactory =
        options.codeCellContentFactory || CodeCellModel.defaultContentFactory;
      this.modelDB = options.modelDB;
    }

constructor(options: IModelFactoryOptions = {}) {
      this.codeCellContentFactory =
        options.codeCellContentFactory || CodeCellModel.defaultContentFactory;
    }

constructor(options: ContentFactory.IOptions) {
      this.codeCellContentFactory =
        options.codeCellContentFactory || CodeCellModel.defaultContentFactory;
      this.modelDB = options.modelDB;
    }

constructor(options: IModelFactoryOptions = {}) {
      this.codeCellContentFactory =
        options.codeCellContentFactory || CodeCellModel.defaultContentFactory;
    }