rest-assured/src/main/java/io/restassured/internal/MultiValueEntity.java
public List<String> getValues(String entityName) {
        final List<T> list = getList(entityName);
        final List<String> stringList = new LinkedList<String>();
        for (T entity : list) {
            stringList.add(entity.getValue());
        }
        return Collections.unmodifiableList(stringList);
    }
public List<String> getValues(String entityName) {
        final List<T> list = getList(entityName);
        final List<String> stringList = new LinkedList<String>();
        for (T entity : list) {
            stringList.add(entity.getValue());
        }
        return Collections.unmodifiableList(stringList);
    }
Get all entity values of the entity with supplied name. If there's only one header matching the <code>entity name</code> then
a list with only that header value is returned.

@param entityName The name of the entity to find
@return The found entity values or empty list if no entity was found.