protected function getBalances()
 {
     $balances = array();
     $allAddresses = $this->multichain->getAddresses();
     array_walk($allAddresses, function (&$address) use(&$balances) {
         $balance = $this->multichain->getAddressBalances($address);
         foreach ($balance as $asset) {
             $balances[$address][] = [$asset["name"], $asset["qty"]];
         }
     });
     return $balances;
 }