use crate::{    db::UserId,    llm::db::{ModelId, UsageId, UsageMeasureId},};use sea_orm::entity::prelude::*; /// An LLM usage record.#[derive(Clone, Debug, PartialEq, DeriveEntityModel)]#[sea_orm(table_name = "usages")]pub struct Model {    #[sea_orm(primary_key)]    pub id: UsageId,    /// The ID of the Zed user.    ///    /// Corresponds to the `users` table in the primary collab database.    pub user_id: UserId,    pub model_id: ModelId,    pub measure_id: UsageMeasureId,    pub timestamp: DateTime,    pub buckets: Vec<i64>,    pub is_staff: bool,} #[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]pub enum Relation {    #[sea_orm(        belongs_to = "super::model::Entity",        from = "Column::ModelId",        to = "super::model::Column::Id"    )]    Model,    #[sea_orm(        belongs_to = "super::usage_measure::Entity",        from = "Column::MeasureId",        to = "super::usage_measure::Column::Id"    )]    UsageMeasure,} impl Related<super::model::Entity> for Entity {    fn to() -> RelationDef {        Relation::Model.def()    }} impl Related<super::usage_measure::Entity> for Entity {    fn to() -> RelationDef {        Relation::UsageMeasure.def()    }} impl ActiveModelBehavior for ActiveModel {}