Function rcudnn::cudnnGetRNNTrainingReserveSize

pub unsafe extern "C" fn cudnnGetRNNTrainingReserveSize(
    handle: *mut cudnnContext,
    rnnDesc: *mut cudnnRNNStruct,
    seqLength: i32,
    xDesc: *const *mut cudnnTensorStruct,
    sizeInBytes: *mut usize
) -> cudnnStatus_t