PFNGLPROGRAMUNIFORM2DVEXTPROCDart typedef
        PFNGLPROGRAMUNIFORM2DVEXTPROCDart =
     void Function(int program, int location, int count, Pointer<Double>  value)
    
    
    
Implementation
typedef PFNGLPROGRAMUNIFORM2DVEXTPROCDart =
    void Function(int program, int location, int count, Pointer<Double> value);