Layout of structure dnnlayout_t in MKL DNN routines

Good evening, 

I am starting to use the Deep neural network routines in MKL. The definition of each node (weights, etc) is stored in a variable of type dnnlayout_t which is opaque. But, how I can save or load a trained network if I cannot extract the weights? So, I need the internal layout of that type or a way to access it.

Thanks in advance,

Jean

In the include file, the type is defined as following:

#if defined(__cplusplus_cli)
struct _uniPrimitive_s {};
struct _dnnLayout_s {};
#endif

typedef struct _uniPrimitive_s* dnnPrimitive_t;
typedef struct _dnnLayout_s* dnnLayout_t;
typedef void* dnnPrimitiveAttributes_t;