3rd ed, page 182 docstring inconsistent with page 183 text

[gitgithan]

On page 182, class Int_set docstring says #Information about the implementation (not the abstraction)
Page 183 says Notice that the docstring at the top of the class definition describes the abstraction provided by the class, not information about how the class is implemented.

I believe page 182 terms should be swapped to #Information about the abstraction (not the implementation)