def lookup_users(self, user_ids=None, screen_names=None, include_entities=None, tweet_mode=None):
post_data = {}<EOL>if include_entities is not None:<EOL><INDENT>include_entities = '<STR_LIT:true>' if include_entities else '<STR_LIT:false>'<EOL>post_data['<STR_LIT>'] = include_entities<EOL><DEDENT>if user_ids:<EOL><INDENT>post_data['<STR_LIT>'] = list_to_csv(user_ids)<EOL><DEDENT>if screen_names:<EOL><INDENT>post_data['<STR_LIT>'] = list_to_csv(screen_names)<EOL><DEDENT>if tweet_mode:<EOL><INDENT>post_data['<STR_LIT>'] = tweet_mode<EOL><DEDENT>return self._lookup_users(post_data=post_data)<EOL>
Perform bulk look up of users from user ID or screen_name