We should replace code like `BoundParameters.ContainsKey("Delimiter")` with `BoundParameters.ContainsKey(nameof(Delimiter))`. Old pattern come from old C# (<6.0) without `nameof()`.
We should replace code like
BoundParameters.ContainsKey("Delimiter")withBoundParameters.ContainsKey(nameof(Delimiter)).Old pattern come from old C# (<6.0) without
nameof().