PiggyBank.sol

pragma solidity ^0.8.0;

contract PiggyBank {
    address payable hodlerAddress;
    uint balance = 0;
    uint deadline;
    uint minValue = 1;

    
    function enrollBank() public  {
        hodlerAddress == msg.sender;
        deadline = block.timestamp + 10 minutes; 
    }
    
    function deposit() public payable {
        require(msg.value >= minValue);
        balance += msg.value;
        
    }
    
    function withdraw() public {
      require(block.timestamp >= deadline);
      hodlerAddress.transfer(balance);
    }
}