use crate::{db::UserId, llm::db::ModelId};use sea_orm::entity::prelude::*; #[derive(Clone, Debug, PartialEq, DeriveEntityModel)]#[sea_orm(table_name = "monthly_usages")]pub struct Model {    #[sea_orm(primary_key)]    pub id: i32,    pub user_id: UserId,    pub model_id: ModelId,    pub month: i32,    pub year: i32,    pub input_tokens: i64,    pub cache_creation_input_tokens: i64,    pub cache_read_input_tokens: i64,    pub output_tokens: i64,} #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]pub enum Relation {} impl ActiveModelBehavior for ActiveModel {}