Function switch_in_form 

pub fn switch_in_form<S, T: Validate>(
    text: impl Into<String>,
    form: Sig<S, Form<T>>,
    field: Sig<T, bool>,
) -> El<S>

An on and off switch labeled text, bound to field of form.

It is switch with the form’s error for field under it, tied to the input by aria-describedby and aria-invalid, and it marks the field touched when the visitor leaves the switch.

use hypersig::{Form, Rules, Sig, Signals, Validate};
use hypersig_ui::switch_in_form;
use serde::{Deserialize, Serialize};

#[derive(Signals, Serialize, Deserialize, Clone)]
struct Settings {
    backups: bool,
}

impl Validate for Settings {
    fn rules<S>(form: Sig<S, Self>, rules: &mut Rules<S, Self>) {
        rules.check(Settings::backups(), form.at(Settings::backups()), "Keep backups on.");
    }
}

#[derive(Signals, Serialize, Deserialize)]
struct Page {
    settings: Form<Settings>,
}

let backups = switch_in_form("Backups", Page::settings(), Settings::backups());
assert!(backups.render().contains(r#"role="switch""#));