Wondering about a code snippet in our smart contract

I am working on a smart contract our project is going to deploy.

The first line is fine and we will set the max tx. But the other two lines I dont know what I should do with really.

uint256 public maxTxAmount = _tokenTotal;
    uint256 public maxTokensInSwap = 100_000e9;
    uint256 public minTokensBeforeSwap = 10_000e9;

Anyone knows? Thank you.

/ Bjorn