LatokenOrderbook { public BigDecimal getSpread() { return spread; } LatokenOrderbook(
      @JsonProperty("pairId") long pairId,
      @JsonProperty("symbol") String symbol,
      @JsonProperty("spread") BigDecimal spread,
      @JsonProperty("asks") List<PriceLevel> asks,
      @JsonProperty("bids") List<PriceLevel> bids); long getPairId(); String getSymbol(); BigDecimal getSpread(); List<PriceLevel> getAsks(); List<PriceLevel> getBids(); @Override String toString();  }
@Test public void testGetSpread() { assertNotNull(orderbook.getSpread()); }