@classmethod<EOL><INDENT>def remove_quotes_around_tz(cls, timestr):<DEDENT>
quoted = cls.QUOTED_TIMEZONE.match(timestr)<EOL>if quoted is not None:<EOL><INDENT>return quoted.group(<NUM_LIT:1>) + quoted.group(<NUM_LIT:2>)<EOL><DEDENT>
Remove quotes (single and double) around timezone otherwise
        `dateutil.parser.parse` raises