<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def check_espeak(cls):
 """ Check whether ``espeak`` can be called. Return ``True`` on failure and ``False`` on success. :rtype: bool """

        try:
            from aeneas.textfile import TextFile
            from aeneas.textfile import TextFragment
            from aeneas.ttswrappers.espeakttswrapper import ESPEAKTTSWrapper
            text = u"From fairest creatures we desire increase,"
            text_file = TextFile()
            text_file.add_fragment(TextFragment(language=u"eng", lines=[text], filtered_lines=[text]))
            handler, output_file_path = gf.tmp_file(suffix=u".wav")
            ESPEAKTTSWrapper().synthesize_multiple(text_file, output_file_path)
            gf.delete_file(handler, output_file_path)
            gf.print_success(u"espeak         OK")
            return False
        except:
            pass
        gf.print_error(u"espeak         ERROR")
        gf.print_info(u"  Please make sure you have espeak installed correctly")
        gf.print_info(u"  and that its path is in your PATH environment variable")
        gf.print_info(u"  You might also want to check that the espeak-data directory")
        gf.print_info(u"  is set up correctly, for example, it has the correct permissions")
        return True