use std::fmt::Display;
use zino_core::Uuid;
/// An interface for the primary key.
pub trait PrimaryKey: Default + Display + PartialEq {}
impl PrimaryKey for i32 {}
impl PrimaryKey for i64 {}
impl PrimaryKey for u32 {}
impl PrimaryKey for u64 {}
impl PrimaryKey for String {}
impl PrimaryKey for Uuid {}