old_contents: from should_dsl.dsl import (should,
                           should_not,
                           matcher,
                           add_predicate_regex,)
  from should_dsl import matchers
  
  
new_contents: from should_dsl.dsl import (should,
                           should_not,
                           matcher,
                           add_predicate_regex,
                           ShouldNotSatisfied)
  from should_dsl import matchers
  
  
subject: allow ShouldNotSatisfied to be imported from should_dsl