if len(enablePlugins.Intersection(disablePlugins).List()) > 0 {
		errs = append(errs, fmt.Errorf("%v in enable-admission-plugins and disable-admission-plugins "+
			"overlapped", enablePlugins.Intersection(disablePlugins).List()))
	}

	// Verify RecommendedPluginOrder.
	recommendPlugins := sets.NewString(a.RecommendedPluginOrder...)
	intersections := registeredPlugins.Intersection(recommendPlugins)

            return callableSymbol.getAllOverriddenSymbols()
        }
        (callableSymbol.firSymbol as? FirIntersectionCallableSymbol)?.let { intersectionSymbol ->
            return intersectionSymbol.intersections.flatMap {
                getAllOverriddenSymbols(analysisSession.firSymbolBuilder.callableBuilder.buildCallableSymbol(it))
            }
        }

        val overriddenElement = mutableSetOf<FirCallableSymbol<*>>()

	}

	nonInterIPV4s := mustGetLocalIP4().Intersection(hostIPs)
	if nonInterIPV4s.IsEmpty() {
		hostIPs = hostIPs.ApplyFunc(func(ip string) string {
			if net.ParseIP(ip).IsLoopback() {
				// Any loopback IP which is not 127.0.0.1
				// convert it to check for intersections.
				return "127.0.0.1"
			}
			return ip
		})
		nonInterIPV4s = mustGetLocalIP4().Intersection(hostIPs)
	}

        && ranges.get(ceilingIndex).isConnected(otherRange)
        && !ranges.get(ceilingIndex).intersection(otherRange).isEmpty()) {
      return true;
    }
    return ceilingIndex > 0
        && ranges.get(ceilingIndex - 1).isConnected(otherRange)
        && !ranges.get(ceilingIndex - 1).intersection(otherRange).isEmpty();
  }

  @Override
  public boolean encloses(Range<C> otherRange) {
    int index =

kind: VirtualService
metadata:
  annotations:
    internal.istio.io/parents: HTTPRoute/attaches-to-abc-foo-example-com-with-hostname-intersection.gateway-conformance-infra
    internal.istio.io/route-semantics: gateway
  creationTimestamp: null
  name: attaches-to-abc-foo-example-com-with-hostname-intersection-0-istio-autogenerated-k8s-gateway
  namespace: gateway-conformance-infra
spec:
  gateways:

				for name := range data.RawTemplates {
					t.Insert(name)
				}
				// either intersection has not been set or we intersect these templates
				// with the current set.
				if intersection.IsEmpty() {
					intersection = t
				} else {
					intersection = intersection.Intersection(t)
				}
			}
		}
		for name := range intersection {
			out[c.Name()].Insert(name)
		}
	}

	return out, nil
}

      allowedRoutes:
        namespaces:
          from: All
---
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  name: attaches-to-empty-hostname-with-hostname-intersection
  namespace: gateway-conformance-infra
spec:
  parentRefs:
    - name: isolation
      namespace: gateway-conformance-infra
      sectionName: empty-hostname
  hostnames:
    - "bar.com"

      kind: GRPCRoute
---
apiVersion: gateway.networking.k8s.io/v1beta1
kind: HTTPRoute
metadata:
  creationTimestamp: null
  name: attaches-to-abc-foo-example-com-with-hostname-intersection
  namespace: gateway-conformance-infra
spec: null
status:
  parents:
  - conditions:
    - lastTransitionTime: fake
      message: Route was valid
      reason: Accepted
      status: "True"

	result := s1.Clone()
	for key := range s2 {
		result.Insert(key)
	}
	return result
}

// Intersection returns a new set which includes the item in BOTH s1 and s2
// For example:
// s1 = {a1, a2}
// s2 = {a2, a3}
// s1.Intersection(s2) = {a2}
func (s1 Set[T]) Intersection(s2 Set[T]) Set[T] {
	var walk, other Set[T]
	result := New[T]()
	if s1.Len() < s2.Len() {
		walk = s1
		other = s2

      if (subRange.contains(key)) {
        Entry<Range<K>, V> entry = TreeRangeMap.this.getEntry(key);
        if (entry != null) {
          return Maps.immutableEntry(entry.getKey().intersection(subRange), entry.getValue());
        }
      }
      return null;
    }

    @Override
    public Range<K> span() {
      Cut<K> lowerBound;
      Entry<Cut<K>, RangeMapEntry<K, V>> lowerEntry =