Function ruma::serde::none_as_default

source ยท 
pub fn none_as_default<'de, D, T>(
    deserializer: D,
) -> Result<T, <D as Deserializer<'de>>::Error>
where
    D: Deserializer<'de>,
    T: Default + Deserialize<'de>,
Expand description

Deserialize a T via Option<T>, falling back to T::default().