@Entity(tableName = "users", , foreignKeys = arrayOf(
        ForeignKey(entity = Address::class, parentColumns = arrayOf("id"), childColumns = arrayOf("address_id"))
)
data class User(
        @PrimaryKey(autoGenerate = true)
        var id: Int = 0,
        var name: String = "",
        @ColumnInfo(name = "address_id")
        var address: Long? = null,
)