pub fn iter_mut(&mut self) -> IterMut<T, A> {
        let len = self.len();
        IterMut {
            rb: self,
            index: 0,
            len,
        }
    }
/// Returns an iterator that allows modifying each value.
Returns an iterator that allows modifying each value.
Returns an iterator that allows modifying each value .
pub fn iter_mut(&mut self) -> IterMut<T, A> {
        let len = self.len();
        IterMut {
            rb: self,
            index: 0,
            len,
        }
    }
pub fn iter_mut ( & mut self ) -> IterMut < T , A > { let len = self . len ( ) ; IterMut { rb : self , index : 0 , len , } }
Returns an iterator that allows modifying each value.
Returns an iterator that allows modifying each value .
&mut self
&mut self