protocol TextOutputStreamable A source of text-streaming operations. Instances of types that conform to the TextOutputStreamable protocol can write their value to instances of any type that conforms to the TextOutputStream protocol. The Swift standard library's text-related types, String, Character, and UnicodeScalar, all conform to TextOutputStreamable. Conforming to the TextOutputStreamable Protocol To add TextOutputStreamable conformance to a custom type, implement the required write(to:) method. Call the given output stream's write(_:) method in your implementation. Inheritance View Protocol Hierarchy → Import import Swift Instance Methods func write(to:) Required Writes a textual representation of this instance into the given output stream. Declaration func write<Target : TextOutputStream>(to target: inout Target)