- Description about the talk
- include/prepend in refinements are often used to define the same set of methods in multiple refinements.
However it should be prohibited because it has implementation difficulties such as https://bugs.ruby-lang.org/issues/17007 and https://bugs.ruby-lang.org/issues/17379, and tends to be misleading like https://bugs.ruby-lang.org/issues/17374.
In this talk, I propose a new feature instead of include/prepend in refinements.