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-# Enums
-
-Tomo supports tagged enumerations, also known as "sum types." Users
-can define their own using the `enum` keyword:
-
-```tomo
-enum VariousThings(AnInteger(i:Int), TwoWords(word1, word2:Text), Nothing)
-
-...
-
-a := VariousThings.AnInteger(5)
-b := VariousThings.TwoWords("one", "two")
-c := VariousThings.Nothing
-```
-
-## Pattern Matching
-
-The values inside an enum can be accessed with pattern matching:
-
-```tomo
-when x is AnInteger(i):
-    say("It was $i")
-is TwoWords(x, y):
-    say("It was $x and $y")
-is Nothing:
-    say("It was nothing")
-```
-
-Pattern matching blocks are always checked for exhaustiveness, but you can add
-an `else` block to handle all unmatched patterns.
-
-## Tag Checking
-
-Tags can also be quickly checked using the `.TagName` field:
-
-```tomo
->> a.AnInteger
-= yes
->> a.TwoWords
-= no
-```
-
-## Reducing Boilerplate
-
-There are three main areas where we can easily reduce the amount of boilerplate
-around enums. We don't need to type `VariousThings.` in front of enum values
-when we already know what type of enum we're dealing with. This means that we
-don't need the name of the type for pattern matching (because we can infer the
-type of the expression being matched). We also don't need the name of the type
-when calling a function with an enum argument, nor when returning an enum value
-from a function with an explicit return type:
-
-```tomo
-enum ArgumentType(AnInt(x:Int), SomeText(text:Text))
-enum ReturnType(Nothing, AnInt(x:Int))
-
-func increment(arg:ArgumentType)->ReturnType:
-    when arg is AnInt(x):
-        return AnInt(x + 1)
-    is SomeText:
-        return Nothing
-
-...
-
->> increment(AnInt(5))
-= ReturnType.AnInt(6)
->> increment(SomeText("HI"))
-= ReturnType.Nothiing
-```
-
-This lets us have overlapping tag names for different types, but smartly infer
-which enum's value is being created when we know what we're expecting to get.
-This also works for variable assignment to a variable whose type is already
-known.
-
-## Namespacing
-
-Enums can also define their own methods and variables inside their namespace:
-
-```tomo
-enum VariousThings(AnInteger(i:Int), TwoWords(word1, word2:Text), Nothing):
-    meaningful_thing := AnInteger(42)
-    func doop(v:VariousThings):
-        say("$v")
-```
-
-Functions defined in an enum's namespace can be invoked as methods with `:` if
-the first argument is the enum's type or a pointer to one (`vt:doop()`).