This declaration is gated by at least one @_spi attribute.
case notVerticalWhitespace
s17_StringProcessing7DSLTreeV4AtomO14CharacterClassO21notVerticalWhitespaceyA2GmF
4SI42
import _StringProcessing
enum CharacterClass
struct DSLTree
enum Atom
case anyGrapheme
case anyUnicodeScalar
case digit
case horizontalWhitespace
case newlineSequence
case notDigit
case notHorizontalWhitespace
case notNewline
case notWhitespace
case notWord
case verticalWhitespace
case whitespace
case word