code: func (co *Context) GetRNNParamsSize(rnnDesc *RNN, xDesc *TensorDescriptor, dataType DataType) (sizeInBytes uintptr, err error) {
  	var sizeInBytesC C.size_t
  	// call cudnnGetRNNParamsSize
  	err = result(C.cudnnGetRNNParamsSize(co.internal, rnnDesc.internal, xDesc.internal, &sizeInBytesC, dataType.C()))
  	sizeInBytes = uintptr(sizeInBytesC)
  	return
  }
docs: // GetRNNParamsSize is used to query the amount of parameter space required to execute the RNN described by rnnDesc with inputs dimensions defined by xDesc.