def add_tweets(self, url, last_modified, tweets):
try:<EOL><INDENT>self.cache[url] = {"<STR_LIT>": last_modified, "<STR_LIT>": tweets}<EOL>self.mark_updated()<EOL>return True<EOL><DEDENT>except TypeError:<EOL><INDENT>return False<EOL><DEDENT>
Adds new tweets to the cache.