How to implement Solidity modifier functions in Rust?

Solidity modifiers are syntactic sugar to add code around functions. Modifiers are reusable across in multiple functions, reducing repetitive checks.

modifier lock() {
    require(slot0.unlocked, 'LOK');
    slot0.unlocked = false;
    _; // run function here
    slot0.unlocked = true;
}

Use it as follows:

function my_function() external override lock returns (uint256 some_val) {}

How to implement a similar pattern in rust? Currently I'm adding the required code directly inside my functions. But this causes a lot of repetition.

fn my_function() -> u8 {
    // modifier pre code
 
    // My function code here ....

    // modifier post code
}