webForm
Convenience function to write the WebForm to the message body and set the content type.
fun Body.Companion.webForm(validator: Validator, vararg formFields: Lens<WebForm, *>): BiDiBodyLensSpec<WebForm>
fun Body.Companion.webForm(validator: Validator, contentNegotiation: ContentNegotiation, vararg formFields: Lens<WebForm, *>): BiDiBodyLensSpec<WebForm>