PFNGLPROGRAMUNIFORM2I64VARBPROCDart typedef
        PFNGLPROGRAMUNIFORM2I64VARBPROCDart =
     void Function(int program, int location, int count, Pointer<Int64>  value)
    
    
    
Implementation
typedef PFNGLPROGRAMUNIFORM2I64VARBPROCDart =
    void Function(int program, int location, int count, Pointer<Int64> value);