PFNGLVERTEXATTRIBFORMATPROC typedef
        PFNGLVERTEXATTRIBFORMATPROC =
     Void Function(Uint32 attribindex, Int32 size, Uint32 type, Int32 normalized, Uint32 relativeoffset)
    
    
    
Implementation
typedef PFNGLVERTEXATTRIBFORMATPROC =
    Void Function(
      Uint32 attribindex,
      Int32 size,
      Uint32 type,
      Int32 normalized,
      Uint32 relativeoffset,
    );