You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: cuda_backend.rs
    path of file: ./repos/candle/candle-core/src
    
    the code of the file until where you have to start completion: use crate::backend::{BackendDevice, BackendStorage
    
    fn set_seed(&self, seed: u64) -> Result<()> {
        // We do not call set_seed but instead create a new curand object. This ensures that the
        // state will be identical and the same random numbers will be generated.
        let mut curand = self.curand.lock().unwrap();
        curand.0 = cudarc::curand::CudaRng::new(seed, self.device.clone()).w()?;
        Ok(())
    }