use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize};
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct Trade {
pub trade_id: Option<String>,
pub product_id: Option<String>,
pub price: Option<String>,
pub size: Option<String>,
pub time: Option<DateTime<Utc>>,
pub side: Option<String>,
pub exchange: Option<String>,
}