@Table(name = "ep_ml_model")
@NoArgsConstructor
@AllArgsConstructor
-@EqualsAndHashCode
@Getter
@Setter
@Entity
@IdClass(EpMlModelId.class)
-public class EpMlModel {
+public class EpMlModel implements Serializable{
@Id
@Digits(integer = 11, fraction = 0)
@Column(name = "group_id", length = 11, nullable = false)