Yup. This is also the case with Ruby, and is one of the challenges when trying to dive in to a large unfamiliar project. For example, when something in Rails do

Yup. This is also the case with Ruby, and is one of the challenges when trying to dive in to a large unfamiliar project. For example, when something in Rails doesn't behave correctly and you flip deep into a source file, it's not always easy to track down exactly what kind of arguments a method expects. Often you'll have to breakpoint inside the method just to inspect what's around.