Function display_container::fmt_keyed_container

pub fn fmt_keyed_container<K: Display, V: Display, Iter: IntoIterator<Item = (K, V)>>(
    f: &mut Formatter<'_>,
    prefix: &str,
    suffix: &str,
    separator: &str,
    items: Iter
) -> Result

Helper for display implementation of container-y types (like dict, struct).

Equivalent to fmt_container where the items have display_pair applied to them.