docs: @Deprecated
      public EvictionPolicyType getEvictionPolicyType() {
          switch (evictionPolicy) {
              case LFU:
                  return EvictionPolicyType.LFU;
              case LRU:
                  return EvictionPolicyType.LRU;
              case RANDOM:
                  return EvictionPolicyType.RANDOM;
              case NONE:
                  return EvictionPolicyType.NONE;
              default:
                  return null;
          }
      }