# File lib/puppet-lint/plugins/check_strings.rb, line 134
  def check
    tokens.select { |r|
      STRING_TYPES.include?(r.type) && BOOLEANS.include?(r.value)
    }.each do |token|
      notify :warning, {
        :message => 'quoted boolean value found',
        :line    => token.line,
        :column  => token.column,
        :token   => token,
      }
    end
  end