10     keys: Vec<K>,  field
20         for (index, existing) in self.keys.iter().enumerate() {  in insert()
32         self.keys.push(key);  in insert_unchecked()
47         for existing in &self.keys {  in contains_key()
69             .keys  in remove_entry()
73         let key = self.keys.remove(index);  in remove_entry()
79         self.keys.is_empty()  in is_empty()
83         for (index, existing) in self.keys.iter().enumerate() {  in entry()
96         for (index, existing) in self.keys.iter().enumerate() {  in get()
109         for (index, existing) in self.keys.iter().enumerate() {  in get_mut()
117     pub fn keys(&self) -> std::slice::Iter<'_, K> {  in keys()  method
118         self.keys.iter()  in keys()
123             keys: self.keys.iter(),  in iter()
130             keys: self.keys.iter_mut(),  in iter_mut()
139             keys: Default::default(),  in default()
155                 entry.v.keys.push(entry.key);  in or_insert()
166                 entry.v.keys.push(entry.key);  in or_insert_with()
185     keys: std::slice::Iter<'a, K>,  field
193         match self.keys.next() {  in next()
202         self.keys.size_hint()  in size_hint()
208         match self.keys.next_back() {  in next_back()
221     keys: std::slice::IterMut<'a, K>,  field
229         match self.keys.next() {  in next()
238         self.keys.size_hint()  in size_hint()
244         match self.keys.next_back() {  in next_back()