Documenting methods - obj.method or obj.method()

[enryH]

Should we document object methods or module functions using obj.method (module.function) or obj.method() (module.function()).

I prefer the former, Rita used the ladder.

notatin	arguments
obj.method module.function	as function are object itself (first-class citizens), they can be assigned. They are callable (or callable()!) which describes them.
obj.method() module.function()	Suggests directly that they are callable and distinguishes them from other attributes.

I have seen both in the official documentation. I just think it will be good to be consistent.

Any opinion or good reference to elaborate the issue?