How to perform 'Base64 Decode' in Clojure.
;; Task: Base64 Decode
;; Language: Clojure
defn base64_decode() (
;; Implementation for Base64 Decode
def result = ...; ;; Initialize variable
;; TODO: Implement core logic here
;; Step 1: Prepare data
;; Step 2: Process Base64 Decode
println("Done");
)