code: @Embedded
      @AttributeOverrides({
          @AttributeOverride(name = "value", column = @Column(name = "INCOME_LEVEL_VALUE")),
          @AttributeOverride(name = "id", column = @Column(name = "INCOME_LEVEL_ID"))
      })
      public IncomeLevel getIncomeLevel() {
          return incomeLevel;
      }
docs: Gets the income level.
  
  @return the income level