pub fn from_iter<Iter, T>(
        &self,
        iter: Iter,
    ) -> Result<T>
    where
        T: de::DeserializeOwned,
        Iter: IntoIterator<Item = (String, String)>,
    {
        let options = VarsOptions { keep_names: true };
        T::deserialize(Deserializer::new(iter.into_iter(), Some(options)))
    }
Deserializes a type based on prefixed (String, String) tuples
src/lib.rs