PFNGLMULTICASTBARRIERNVPROCDart typedef
        PFNGLMULTICASTBARRIERNVPROCDart =
     void Function()
    
    
    
Implementation
typedef PFNGLMULTICASTBARRIERNVPROCDart = void Function();typedef PFNGLMULTICASTBARRIERNVPROCDart = void Function();