Function rcudnn::cudnnGetRNNParamsSize

pub unsafe extern "C" fn cudnnGetRNNParamsSize(
    handle: *mut cudnnContext, 
    rnnDesc: *mut cudnnRNNStruct, 
    xDesc: *mut cudnnTensorStruct, 
    sizeInBytes: *mut usize, 
    dataType: cudnnDataType_t
) -> cudnnStatus_t