### Question:
Person { @Nullable public String getKey() { return mKey; } private  Person(Builder builder); static Person fromBundle(Bundle bundle); Bundle toBundle(); Builder toBuilder(); @Nullable CharSequence getName(); @Nullable IconCompat getIcon(); @Nullable String getUri(); @Nullable String getKey(); boolean isBot(); boolean isImportant();  }### Answer:
@Test public void getKey() { Person person = new Person.Builder().setKey(TEST_KEY).build(); assertEquals(TEST_KEY, person.getKey()); }