How can I easily support duplicate async/sync methods?

Question

Entity framework has synchronous and asynchronous versions of the same IO-bound methods such as SaveChanges and SaveChangesAsync. How can I create new methods that minimally accomplish the same task without "duplicating" code?

public bool SaveChanges()
{
    //Common code calling synchronous methods
    context.Find(...);

    //Synchronous Save
    return context.SaveChanges();
}

public async Task<bool> SaveChangesAsync()
{
    //Common code asynchronous methods
    await context.FindAsync(...);    

    //Asynchronous Save
    return await context.SaveChangesAsync();
}

Answer 1

You can't - at least, not sensibly. Synchronous and asynchronous implementations are fundamentally different. You can fake over it, via "sync over async" and "async over sync", but both of these are anti-patterns and should be avoided.