Function rcudnn::cudnnGetRNNTempSpaceSizes

pub unsafe extern "C" fn cudnnGetRNNTempSpaceSizes(
    handle: *mut cudnnContext, 
    rnnDesc: *mut cudnnRNNStruct, 
    fMode: cudnnForwardMode_t, 
    xDesc: *mut cudnnRNNDataStruct, 
    workSpaceSize: *mut usize, 
    reserveSpaceSize: *mut usize
) -> cudnnStatus_t