PFNGLSEMAPHOREPARAMETERUI64VEXTPROCDart typedef
        PFNGLSEMAPHOREPARAMETERUI64VEXTPROCDart =
     void Function(int semaphore, int pname, Pointer<Uint64>  params)
    
    
    
Implementation
typedef PFNGLSEMAPHOREPARAMETERUI64VEXTPROCDart =
    void Function(int semaphore, int pname, Pointer<Uint64> params);