Simple storage function for Solidity v0.5, with modifier

MyContract.sol

pragma solidity ^0.5.0;

contract MyContract {

    uint public mynumber; 
    /* Modified simple storage function. Only stores numbers greater than 10. */
    
    modifier checkValue(uint mynum){ 
        require(mynum > 10); 
        _;
    }

    constructor() public{
        mynumber = 24; 
    }

    function storeNum(uint mynum)
        public
        checkValue(mynum)
    {
        mynumber = mynum; 
    }
}