/// Creates an empty `RoaringTreemap`.
///
/// # Examples
///
/// ```rust
/// use roaring::RoaringTreemap;
/// let mut rb = RoaringTreemap::new();
/// ```
Creates an empty `RoaringTreemap`.
Creates an empty ` RoaringTreemap ` .
pub fn new() -> RoaringTreemap {
        RoaringTreemap {
            map: BTreeMap::new(),
        }
    }
pub fn new ( ) -> RoaringTreemap { RoaringTreemap { map : BTreeMap :: new ( ) , } }
Creates an empty `RoaringTreemap`.
Creates an empty ` RoaringTreemap ` .
examples
```rust
use roaring::RoaringTreemap;
let mut rb = RoaringTreemap::new();
```
` ` ` rust use roaring :: RoaringTreemap ; let mut rb = RoaringTreemap :: new () ; ` ` `