FSharp.Core by Microsoft

<PackageReference Include="FSharp.Core" Version="4.7.2" />

.NET API 3,022,728 bytes

 FSharpOption<T>

public static class Tags<T>

public static bool this[FSharpOption<T> ] { get; }

public static bool this[FSharpOption<T> ] { get; }

public static FSharpOption<T> None { get; }

public T Value { get; }

public FSharpOption(T value)

public static int GetTag(FSharpOption<T> )

public static FSharpOption<T> op_Implicit(T value)

public static FSharpOption<T> Some(T value)