use serde::{Deserialize, Serialize};
#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct BookInfo {
pub id: Option<u32>,
pub title: String,
pub call_no: String,
pub library_name: String,
pub borrow_time: String,
pub should_return_time: Option<String>,
pub is_return: bool,
pub return_time: Option<String>,
pub renew_count: u16,
pub can_renew: bool,
}