omap := make(map[string]*IstioEndpoint, len(oldIstioEndpoints))
		nmap := make(map[string]*IstioEndpoint, len(newIstioEndpoints))
		// Add new endpoints only if they are ever ready once to shards
		// so that full push does not send them from shards.
		for _, oie := range oldIstioEndpoints {
			omap[oie.Address] = oie
		}
		for _, nie := range istioEndpoints {

                        Map<String, Supplier<Object>> map = res3.stream()
                                .filter(b -> b.getOriginalKey() == null
                                        || b.getOriginalKey().getQualifier() == null
                                        || b.getOriginalKey().getQualifier() instanceof String)
                                .collect(Collectors.toMap(
                                        b -> (String)

	// TODO: keep a single varnum map, then make all of these maps slices instead?
	vars map[ir.Node]*ssa.Value

	// fwdVars are variables that are used before they are defined in the current block.
	// This map exists just to coalesce multiple references into a single FwdRef op.
	// *Node is the unique identifier (an ONAME Node) for the variable.
	fwdVars map[ir.Node]*ssa.Value

        }

        @Override
        public Map<String, String> getUserProperties() {
            return Map.of();
        }

        @Override
        public Map<String, String> getSystemProperties() {
            return systemProperties;
        }

        @Override
        public Map<String, String> getEffectiveProperties(Project project) {

			}
			cmap := xdstest.ExtractClusters(clusters)
			got := xdstest.MapKeys(cmap)

			// Check we have all expected clusters
			if !reflect.DeepEqual(xdstest.MapKeys(tt.clusters), got) {
				t.Errorf("expected clusters: %v, got: %v", xdstest.MapKeys(tt.clusters), got)
			}

			for cname, c := range cmap {
				// Check the upstream endpoints match