function _deposit(address[] memory tokens, uint256[] memory amounts, address recipient) private checkDepositStarted checkDepositNotEnded {
    _checkCap(tokens, amounts);

    for (uint256 i = 0; i < tokens.length; i++) {
      IERC20(tokens[i]).safeTransferFrom(msg.sender, address(this), amounts[i]);
      address token = tokens[i];
      uint256 amount = amounts[i];
      balances[recipient][token] += amount;
    }    

    emit Deposited(recipient, tokens, amounts);
}

function withdraw(address[] memory tokens, uint256[] memory amounts) external nonReentrant whenNotPaused checkDepositStarted checkDepositNotEnded {
    for (uint256 i = 0; i < tokens.length; i++) {
      address token = tokens[i];
      uint256 amount = amounts[i];
      if (balances[msg.sender][token] < amount) revert InsufficientBalance();
      balances[msg.sender][token] -= amount;
      IERC20(token).safeTransfer(msg.sender, amount);
    }

    emit Withdrawn(msg.sender, tokens, amounts);
}