pub fn by_id<Q>(&self, key: &Q) -> Option<&super::Metadata>
		where Q:      ?Sized + Hash + Eq,
		      String: Borrow<Q>,
	{
		self.by_id.get(key).map(AsRef::as_ref)
	}
/// Get a metadata entry by country ID.
Get a metadata entry by country ID.
Get a metadata entry by country ID .
pub fn by_id<Q>(&self, key: &Q) -> Option<&super::Metadata>
		where Q:      ?Sized + Hash + Eq,
		      String: Borrow<Q>,
	{
		self.by_id.get(key).map(AsRef::as_ref)
	}
pub fn by_id < Q > ( & self , key : & Q ) -> Option < & super :: Metadata > where Q : ? Sized + Hash + Eq , String : Borrow < Q > , { self . by_id . get ( key ) . map ( AsRef :: as_ref ) }
Get a metadata entry by country ID.
Get a metadata entry by country ID .
&self
key
&Q