# File lib/hiera/backend/eyaml/utils.rb, line 63
        def self.write_important_file args
          filename = args[ :filename ]
          content = args[ :content ]
          mode = args[ :mode ]
          if File.file? "#{filename}"
             raise StandardError, "User aborted" unless Utils::confirm? "Are you sure you want to overwrite \"#{filename}\"?"
          end
          open( "#{filename}", "w" ) do |io|
            io.write(content)
          end
          File.chmod( mode, filename ) unless mode.nil?
        end