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