<PackageReference Include="System.Text.Json" Version="11.0.0-rc.3.26522.148" />

System.Diagnostics.CodeAnalysis.StringSyntaxAttribute

namespace System.Text.Json.Serialization.Metadata { public class JsonPolymorphismOptions { public IList<JsonDerivedType> DerivedTypes { get; } public bool IgnoreUnrecognizedTypeDiscriminators { get; set; } public JsonUnknownDerivedTypeHandling UnknownDerivedTypeHandling { get; set; } public string TypeDiscriminatorPropertyName { get; set; } public JsonPolymorphismOptions(); } } namespace System.Diagnostics.CodeAnalysis { }