What's this in clojure?

example.py

def add_net_and_tax(discounts):
    discounts = map(lambda discount: assoc(discount, 'net', round(discount['gross'] / (1 + tax_rate))),
                    discounts)
    discounts = map(lambda discount: assoc(discount, 'tax', discount['gross'] - discount['net']),
                    discounts)
    return discounts

Something like this perhaps:

(defn add-net-and-tax [discounts]
 (for [discount discounts]
   (let [gross (:gross disocount)
         net (/ gross (+ 1 tax_rate))]
     (assoc discount
       :net net
       :tax (- gross net)))))

(defn add-net-and-tax [discounts]
  (map (fn [{:keys [gross] :as discount}]
         (let [net (/ gross (inc tax-rate))]
           (assoc discount :net net :tax (- gross net))))
       discounts))

(defn add-net-and-tax [discounts]
  (map #(as-> % discount
      (assoc discount :net (/ (:gross discount) (inc tax-rate)))
      (assoc discount :tax (- (:gross discount) (:net discount))))
    discounts))

Hmm.