handlers and include_role, import_role

[George Shuklin]

I've done research on behaviour of handlers together with include/import role.

https://medium.com/@george.shuklin/include-role-import-role-and-handlers-in-ansible-b32a5386a555

Short excerpt:

import_role: All handlers are in the same scope, inner handlers always win.

include_role: Handlers in an inner role are invisible for an outer role. outer role’s handlers supersede inner role’s handlers for tasks in the inner role.

Any critique/refinements are welcomed.