This declaration is gated by at least one @_spi attribute.
case notHorizontalWhitespace
s17_StringProcessing7DSLTreeV4AtomO14CharacterClassO23notHorizontalWhitespaceyA2GmF
79ZQZ
import _StringProcessing
enum CharacterClass
struct DSLTree
enum Atom
case anyGrapheme
case anyUnicodeScalar
case digit
case horizontalWhitespace
case newlineSequence
case notDigit
case notNewline
case notVerticalWhitespace
case notWhitespace
case notWord
case verticalWhitespace
case whitespace
case word