class Sass::Tree::ImportNode

def import
  begin
    full_filename = Sass::Files.find_file_to_import(@imported_filename, import_paths)
  rescue Exception => e
    raise SyntaxError.new(e.message, self.line)
  end
  if full_filename =~ /\.css$/
    @to_s = "@import url(#{full_filename});"
    return false
  end
  return full_filename
end