Read it twice, still not sure why simple type/tuple/record pattern matching was not enough. (https://docs.microsoft.com/en-us/dotnet/fsharp/language-reference/p

Read it twice, still not sure why simple type/tuple/record pattern matching was not enough. (https://docs.microsoft.com/en-us/dotnet/fsharp/language-reference/pattern-matching https://docs.microsoft.com/en-us/dotnet/fsharp/language-refe...). Also active pattern matching could've solve exotic cases, if any (https://docs.microsoft.com/en-us/dotnet/fsharp/language-reference/active-patterns https://docs.microsoft.com/en-us/dotnet/fsharp/language-refe...)