Is there a way to create a custom object when selecting?

Like in Entity Framework, we do something like this for example.

dbContext.Todos.Where(x => x.Id == id).Select(x => new 
{
  id = x.Id,
  isCreatedByTheo = x.User == "Theo"
}).ToList();

dbContext.Todos.Where(x => x.Id == id).Select(x => new 
{
  id = x.Id,
  isCreatedByTheo = x.User == "Theo"
}).ToList();

Here I can create a custom

boolean

boolean

field which is not part of

Todo

Todo

schema. How can I do that same with Prisma?