PFNGLFLUSHMAPPEDBUFFERRANGEAPPLEPROCDart typedef
        PFNGLFLUSHMAPPEDBUFFERRANGEAPPLEPROCDart =
     void Function(int target, Pointer<NativeType>  offset, Pointer<Uint32>  size)
    
    
    
Implementation
typedef PFNGLFLUSHMAPPEDBUFFERRANGEAPPLEPROCDart =
    void Function(int target, Pointer<NativeType> offset, Pointer<Uint32> size);