pub unsafe extern "C" fn cudnnGetBatchNormalizationForwardTrainingExWorkspaceSize(
handle: cudnnHandle_t,
mode: cudnnBatchNormMode_t,
bnOps: cudnnBatchNormOps_t,
xDesc: cudnnTensorDescriptor_t,
zDesc: cudnnTensorDescriptor_t,
yDesc: cudnnTensorDescriptor_t,
bnScaleBiasMeanVarDesc: cudnnTensorDescriptor_t,
activationDesc: cudnnActivationDescriptor_t,
sizeInBytes: *mut usize
) -> cudnnStatus_t