/// Ensures a value is in the entry by inserting the `default` if empty,
/// and returns a mutable reference to the value in the entry.
/// 
/// # Examples
/// ```
/// use coca::collections::InlineListMap;
/// 
/// let mut map = InlineListMap::<&'static str, u32, 4>::new();
///
/// map.entry("foobar").or_insert(3);
/// assert_eq!(map.get("foobar"), Some(&3));
/// 
/// *map.entry("foobar").or_insert(5) *= 2;
/// assert_eq!(map.get("foobar"), Some(&6));
/// ```
Ensures a value is in the entry by inserting the `default` if empty,
and returns a mutable reference to the value in the entry.
Ensures a value is in the entry by inserting the ` default ` if empty and returns a mutable reference to the value in the entry .
pub fn or_insert(self, default: V) -> &'a mut V {
        match self {
            Occupied(entry) => entry.into_mut(),
            Vacant(entry) => entry.insert(default),
        }
    }
pub fn or_insert ( self , default : V ) -> & ' a mut V { match self { Occupied ( entry ) => entry . into_mut ( ) , Vacant ( entry ) => entry . insert ( default ) , } }
Ensures a value is in the entry by inserting the `default` if empty,
and returns a mutable reference to the value in the entry.
Ensures a value is in the entry by inserting the ` default ` if empty and returns a mutable reference to the value in the entry .
self
<not_specific>
default
V
<not_specific>
examples
```
use coca::collections::InlineListMap.

let mut map = InlineListMap::<&'static str, u32, 4>::new().




` ` ` use coca :: collections :: InlineListMap . let mut map = InlineListMap :: <& ' static str u32 4 > :: new () .