A type that represents an extended grapheme cluster literal.
associatedtype ExtendedGraphemeClusterLiteralType : _ExpressibleByBuiltinExtendedGraphemeClusterLiteralss43ExpressibleByExtendedGraphemeClusterLiteralP0cdeF4TypeQa What are these?9KIUOValid types for ExtendedGraphemeClusterLiteralType are Character, String, and StaticString.
import Swiftprotocol ExpressibleByExtendedGraphemeClusterLiteral : ExpressibleByUnicodeScalarLiteralA type that can be initialized with a string literal containing a single extended grapheme cluster.
init(extendedGraphemeClusterLiteral value: Self.ExtendedGraphemeClusterLiteralType) Creates an instance initialized to the given value.