public void SetNull()
                {
                    // Arrange
                    var builder = new Decimal128Array.Builder(new Decimal128Type(24, 8))
                                  .Resize(1);

                    // Act
                    builder.Set(0, 50.123456M);
                    builder.SetNull(0);

                    // Assert
                    var array = builder.Build();

                    Assert.Null(array.GetValue(0));
                }