if visible_issue_count equals to integer 0, or for string "1 issue" if visible_issue_count equals integer 1, or for string "%s issues", with '%s' replaced by visible_issue_count, subtract visible_issue_count from length of all_issues, and substitute it for second '%s' in the stirting string. if any element in the return value of the e.is_serious method is true, and if return value of the method e.is_silenced is false,
if any ( e . is_serious ( ) and not e . is_silenced ( ) for e in all_issues ) :