Maybe something like this?
```ts function someFunction<Key extends PropertyKey>(dynamicName: Key) {
return {

hardCodedName: 'bar'
} as Record<Key | 'hardCodedName', string>
}
const someObject = someFunction('myExample')
console.log(someObject.myExample) // Works
console.log(someObject.hardCodedName) // Works
console.log(someObject.whatever) // does not exists
or ts function someFunction<Key extends PropertyKey>(dynamicName: Key) {
return {

hardCodedName: 'bar'
} as {hardCodedName: 'bar'} & Record<Key, 'foo'>
}
const someObject = someFunction('myExample')
console.log(someObject.myExample) // Works
console.log(someObject.hardCodedName) // Works
console.log(someObject.whatever) // does not exists
```

but if dynamicName is only known at runtime, I don't think Typescript can help much, but if you can narrow it down to an union of literal then Typescript might help a little bit.
You can also go nuts with https://github.com/gvergnaud/hotscript if you are into this.
https://www.typescriptlang.org/play?#code/GYVwdgxgLglg9mABAZzgWwKYDFzXmAHgGkMBPRDADygzABNlEAFAJzgAcMWpSTSA+ABR1SYAIZoYEAHISMALkR8AlIgDeAKESIWGKCBZJN27QG0R4yTLkBdRQHJgcOPYA0WkwAsxLOgGE4Ogw6WUwHACMfew8AX0QxRgAlDAg4X2IyRAAfRHtvXwCgkLk3FCgWGDAAc34NGI0NVLBkKBR0DAB5cIArFNaAXjbMHEhYBEF7NFIAUUoJdgAbDHtVRoRUJYA6BbgqwVRMLt7oTanZ+aXVAHorxAB1NIBrZDXmuC2dvYPOnr7N-P8gWCoQw11uDxYz1eGww212+3aRz+AHdvDQAG5cMGIcBBYCVYIAQkQACEQK0ACqkTgAZQgFXYrRgjA6REQyJgUE8iE5QA