def _default_value_only(self):
line = self.source[self.col_offset:]<EOL>regex = re.compile('''<STR_LIT>''')<EOL>match = regex.match(line)<EOL>if not match:<EOL><INDENT>return '<STR_LIT>'<EOL><DEDENT>return match.group(<NUM_LIT:1>)<EOL>
Return only the default value, if there is one.