@property<EOL><INDENT>def tags(self):<DEDENT>
if not self.raw_content:<EOL><INDENT>return set()<EOL><DEDENT>return {word.strip("<STR_LIT:#>").lower() for word in self.raw_content.split() if word.startswith("<STR_LIT:#>") and len(word) > <NUM_LIT:1>}<EOL>
Returns a `set` of unique tags contained in `raw_content`.