[Seaside] Configuring Exception Handler programmatically (one-liner?)

[Esteban A. Maringolo]

I know how to add a filter to a handler (look ma'!), but how can I
configure the filter using the shortest expression?

(WAAdmin register: GptRestApiV1 at: 'gpt-api/v1')
addFilter: TsAuthenticationFilter new;
addFilter: WAExceptionFilter new.

Is there a way to configure the filter whitin that expression, or
should I assing it to a variable, configure it and the add to the
handler filters?

Regards,

Esteban A. Maringolo