Add docstrings to transactions functions

handler/transactions.py

@@ -62,12 +62,15 @@ class Transactions(object):
         r.hmset(f"tx.{txid}", to_store)
 
     def find_tx(self, reference, amount):
+        """
+        Find transactions that match the given reference and amount.
+        :param reference: transaction reference in Revolut
+        :param amount: transaction amount
+        :return: transaction details or AMOUNT_INVALID, or False
+        """
         all_transactions = r.scan(0, match="tx.*")
-        print(f"ALL {all_transactions}")
         for tx_iter in all_transactions[1]:
             tx_obj = r.hgetall(tx_iter)
-            print(f"ITER {tx_iter}")
-            print(f"OBJ {tx_obj}")
             if tx_obj[b"reference"] == str.encode(reference):
                 if tx_obj[b"amount"] == str.encode(amount):
                     return tx_obj