This method is only available on newer versions.
The first available version (v2_6_3) is shown here.
unused_unwind_options()
public
(see Bundler::Molinillo::ResolutionState#unused_unwind_options)
# File lib/bundler/vendor/molinillo/lib/molinillo/delegates/resolution_state.rb, line 51
def unused_unwind_options
current_state = state || Bundler::Molinillo::ResolutionState.empty
current_state.unused_unwind_options
end