code: def _get_balance( self, get_address, min_confs ):
          
          bitcoind_opts = get_bitcoin_opts()
          bitcoind_host = bitcoind_opts['bitcoind_server']
          bitcoind_port = bitcoind_opts['bitcoind_port']
          bitcoind_user = bitcoind_opts['bitcoind_user']
          bitcoind_passwd = bitcoind_opts['bitcoind_passwd']
  
          bitcoind = create_bitcoind_service_proxy(bitcoind_user, bitcoind_passwd, server=bitcoind_host, port=bitcoind_port)
          address = virtualchain.address_reencode(get_address)
  
          try:
              unspents = get_unspents(address, bitcoind)
          except Exception as e:
              log.exception(e)
              return {'error': 'Failed to get unspents for {}'.format(get_address)}
  
          satoshis_confirmed = sum(confirmed_utxo['value'] for confirmed_utxo in 
                                   filter(lambda utxo: utxo['confirmations'] >= min_confs, unspents))
  
          return {'balance': satoshis_confirmed}
docs: Works only in test mode!
          Get the confirmed balance for an address