How can I add NSSpeechSynthesizer Class Reference?

Question

How can i add NSSpeechSynthesizer Class Reference. I think it is in
/System/Library/Frameworks/AppKit.framework. However there is no such framework name

Answer 1

AppKit framework is MacOS framework, not iOS, and so NSSpeechSynthesizer class is also available on Mac only.

Check this question on SO for the list of some 3rd-party text-to-speach engines available on iPhone