jill/src/main/java/io/github/agentsoz/jill/core/beliefbase/abs/ABeliefStore.java
@Override
  public boolean eval(int agentid, String key) throws BeliefBaseException {
    return !query(agentid, key).isEmpty();
  }
@Override
  public boolean eval(int agentid, String key) throws BeliefBaseException {
    return !query(agentid, key).isEmpty();
  }
{@inheritDoc}.