public SdkInspector build() {
return new SdkInspector() {
Map<SdkItem,String> items = new HashMap<SdkItem,String>();
@Override
public String get(String canonicalName, String itemName) {
SdkItem item = new SdkItem(canonicalName, itemName);
if(!items.containsKey(item)) {
String value = shell.get().command("SDK Inspector", "xcodebuild")
.withArguments("-sdk", canonicalName)
.withArguments("-version", itemName)
.build().run().output();