@JsonIgnore
  public static boolean isQuotaNode(JsonNode jsonNode) {
    return jsonNode.has(WCU_FIELD_NAME);
  }
Constructor for {@link CapacityUnit} that sets the specified values for rcu and wcu.
@param rcu value for {@link CapacityUnit#rcu}.
@param wcu value for {@link CapacityUnit#wcu}.
ambry-quota/src/main/java/com/github/ambry/quota/capacityunit/CapacityUnit.java