use serde::{Deserialize, Serialize};
use crate::price_book::PriceBook;
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct ProductBook {
pub pricebook: PriceBook,
pub last: Option<String>,
pub mid_market: Option<String>,
pub spread_bps: Option<String>,
pub spread_absolute: Option<String>,
}