JoinWithNewLines(Fields.Select(x => $" public readonly {x.DataType} {x.FieldName};"));
{JoinWithNewLines( Fields.Select( x => x.IsEnumerable ? $" IEnumerable<{x.DataType}> {x.Name.ToLower()} = default," : $" {x.DataType} {x.Name.ToLower()} = default,"