def has_preview(self):
<EOL>if ('<STR_LIT>' not in self.my_osid_object._my_map or<EOL>'<STR_LIT>' not in self.my_osid_object._my_map['<STR_LIT>'] or<EOL>self.my_osid_object._my_map['<STR_LIT>']['<STR_LIT>'] is None):<EOL><INDENT>return False<EOL><DEDENT>return bool(self.my_osid_object._my_map['<STR_LIT>']['<STR_LIT>'])<EOL>
stub