title: Which keys do I need for CNContactFormatter?
body: <p>I'm trying to format a contact's name using the new <code>CNContactFormatter</code>. It looks like, I didn't fetch all needed name properties of the contact.</p>
  
  <pre><code>Terminating app due to uncaught exception 'CNPropertyNotFetchedException', reason: 'A property was not requested when contact was fetched.'
  </code></pre>
  
  <p>Does anyone know which ones are required? I tried fetching the following amongst a few others with no luck:</p>
  
  <pre><code>        CNContactNamePrefixKey,
          CNContactGivenNameKey,
          CNContactFamilyNameKey,
          CNContactMiddleNameKey, 
          CNContactPreviousFamilyNameKey,
          CNContactNameSuffixKey,
          CNContactNicknameKey,
          CNContactPhoneticGivenNameKey,
          CNContactPhoneticMiddleNameKey,
          CNContactPhoneticFamilyNameKey,
          CNContactOrganizationNameKey,
          CNContactDepartmentNameKey,
          CNContactJobTitleKey,
  </code></pre>
  
  <p>Neither the <a href="https://developer.apple.com/library/prerelease/ios/documentation/Contacts/Reference/CNContactFormatter_Class/index.html#//apple_ref/occ/cl/CNContactFormatter">CNContactFomatter Class Reference</a> nor the <a href="https://developer.apple.com/library/prerelease/ios/documentation/Contacts/Reference/CNContactStore_Class/index.html#//apple_ref/occ/instm/CNContactStore/unifiedContactsMatchingPredicate:keysToFetch:error:">fetching method's documentation</a> give any clue.</p>
  
  <p>Thanks!</p>