gistfile1.txt

(defn string-or-nil? [x] (or (string? x) (nil? x)))

hotel => (contains {:lat number? :lng number? :name string?
                         :address (contains {:line1 string-or-nil?
                                             :line2 string-or-nil?
                                             :city string?
                                             :region string?
                                             :postal_code string?
                                             :country_code string?
                                             :country_name string?})
                         :aka map?
                         :udicode string?})