<PackageReference Include="System.Text.Json" Version="10.0.0-preview.6.25358.103" />

NullabilityInfo

sealed class NullabilityInfo
namespace System.Reflection { internal sealed class NullabilityInfo { public Type Type { get; } public System.Reflection.NullabilityState ReadState { get; set; } public System.Reflection.NullabilityState WriteState { get; set; } public System.Reflection.NullabilityInfo ElementType { get; } public System.Reflection.NullabilityInfo[] GenericTypeArguments { get; } internal NullabilityInfo(Type type, System.Reflection.NullabilityState readState, System.Reflection.NullabilityState writeState, System.Reflection.NullabilityInfo elementType, System.Reflection.NullabilityInfo[] typeArguments) { Type = type; ReadState = readState; WriteState = writeState; ElementType = elementType; GenericTypeArguments = typeArguments; } } }