open

# File activestorage/lib/active_storage/downloader.rb, line 11
    def open(key, checksum: nil, verify: true, name: "ActiveStorage-", tmpdir: nil)
      open_tempfile(name, tmpdir) do |file|
        download key, file
        verify_integrity_of(file, checksum: checksum) if verify
        yield file
      end
    end