@startuml usersystem_repo !include postgres/postgres.puml package Repo { interface UserSystemRepository{ GetSystemUsers(ctx context.Context, system_code string) ([]UserSystemAggregate, error) AddUserToSystem(ctx context.Context, system_code string, user domain.Models.User) error RemoceUserFromSystem(ctx context.Context, system_code string, user domain.Models.User) error } struct UserSystemAggregate { System domain.Models.System Users []domain.Models.User } UserSystemRepository o-- UserSystemAggregate class UserSystemPostgresRepo UserSystemRepository <|-- UserSystemPostgresRepo PostgresRepo <|-- UserSystemPostgresRepo } @enduml