def fileinfo(self, fid):
if not isinstance(fid, str):<EOL><INDENT>raise TypeError("<STR_LIT>")<EOL><DEDENT>try:<EOL><INDENT>info = self.conn.make_call_with_cb("<STR_LIT>", fid).get(timeout=<NUM_LIT:5>)<EOL>if not info:<EOL><INDENT>warnings.warn(<EOL>f"<STR_LIT>", RuntimeWarning<EOL>)<EOL><DEDENT>elif fid in self.__files and not self.__files[fid].updated:<EOL><INDENT>self.__files[fid].fileupdate(info)<EOL><DEDENT><DEDENT>except queue.Empty as ex:<EOL><INDENT>raise ValueError(<EOL>"<STR_LIT>"<EOL>"<STR_LIT>"<EOL>) from ex<EOL><DEDENT>return info<EOL>
Ask lain about what he knows about given file. If the given file
        exists in the file dict, it will get updated.