code: function fill(size, seed, multiplier) {
      var hash = new HashTable(size, seed, multiplier);
      var x = agentdb.getX(1, 1); // dummy data Unknown, Unknown
      agents.forEach(function (agent) {
          if (agent.status < 2) {
              var obj = { "a": agent.agent, "x": x };
              hash.add('a', obj);
          }
      });
      return hash.getHistory();
  }
docs: Fill the hash table with the agents.
  
  @param size of hash table.
  @param seed for hash table.
  @param multiplier of hash table.
  @rtype Array hash table history.