code: def create(ctx, to, amount, symbol, secret, hash, account, expiration):
      
      ctx.blockchain.blocking = True
      tx = ctx.blockchain.htlc_create(
          Amount(amount, symbol),
          to,
          secret,
          hash_type=hash,
          expiration=expiration,
          account=account,
      )
      tx.pop("trx", None)
      print_tx(tx)
      results = tx.get("operation_results", {})
      if results:
          htlc_id = results[0][1]
          print("Your htlc_id is: {}".format(htlc_id))
docs: Create an HTLC contract