pub fn contains_key<Q: ?Sized>(&self, k: &Q) -> bool
	where
		K: Borrow<Q>,
		Q: Hash + Eq {
		self.0.as_ref().contains_key(k)
	}
/// Returns `true` if the map contains a value for the specified key.
///
/// ```
///	# use push_while_ref::{HashMapOwner, HashMapChild};
/// let mut map = HashMapOwner::new();
/// let mut map = map.child();
/// let value = map.insert("10".to_string(), Box::new(10));
/// assert!(map.contains_key("10"));
/// ```
Returns `true` if the map contains a value for the specified key.
Returns ` true ` if the map contains a value for the specified key .
pub fn contains_key<Q: ?Sized>(&self, k: &Q) -> bool
	where
		K: Borrow<Q>,
		Q: Hash + Eq {
		self.0.as_ref().contains_key(k)
	}
pub fn contains_key < Q : ? Sized > ( & self , k : & Q ) -> bool where K : Borrow < Q > , Q : Hash + Eq { self . 0 . as_ref ( ) . contains_key ( k ) }
Returns `true` if the map contains a value for the specified key.
Returns ` true ` if the map contains a value for the specified key .
&self
k
&Q
&self
k
&Q