Eager Loading: Load ALL Associations

I’m looking for a way to do something like:

ARObject.find_by_id(1, :include => :all)
--------- OR -----------
ARObject.find_by_id(1, :include => [:all])

…to load the object as well as ‘eager load’ all of its associations.
Is this possible?

What you may be looking for is:

ARObject.find_by_id(1, :Include => [:associated_model1,
:associated_model2])