def extra_from_record(self, record):
return {<EOL>attr_name: record.__dict__[attr_name]<EOL>for attr_name in record.__dict__<EOL>if attr_name not in BUILTIN_ATTRS<EOL>}<EOL>
Returns `extra` dict you passed to logger.

        The `extra` keyword argument is used to populate the `__dict__` of
        the `LogRecord`.