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: bookmarks_client.rs
    path of file: ./repos/termscp/src/system
    
    the code of the file until where you have to start completion: //! ## BookmarksClient
//!
//! `bookmarks_client` is the module which provides an API between the Bookmarks module and the system

// Crate
// Ext
use std::fs::OpenOptions;
use std::path::{Path, PathBuf};
use std::string::ToString;
use std::time::SystemTime;

use super::keys::filestorage::FileStorage;
#[cfg(feature = "with-keyring")]
use super::keys::keyringstor
    
    pub fn write_bookmarks(&self) -> Result<(), SerializerError> {
        // Open file
        debug!("Writing bookmarks");
        match OpenOptions::new()
            .create(true)
            .write(true)
            .truncate(true)
            .open(self.bookmarks_file.as_path())
        {
            Ok(writer) => serialize(&self.hosts, Box::new(writer)),
            Err(err) => {
                error!("Failed to write bookmarks: {}", err);
                Err(SerializerError::new_ex(
                    SerializerErrorKind::Io,
                    err.to_string(),
                ))
            }
        }
    }