@property<EOL><INDENT>def path(self):<DEDENT>
if not isinstance(self.ref, str):<EOL><INDENT>return None<EOL><DEDENT>u = parse_app_url(self.ref)<EOL>if u.inner.proto != '<STR_LIT:file>':<EOL><INDENT>return None<EOL><DEDENT>return u.path<EOL>
Return the path to the file, if the ref is a file