{"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"///"}]}
    ///     unsafe { &raw mut (*ptr)[..16] }
    /// unsafe fn fun(ptr: *mut [u8]) -> *mut [u8] {
    ///     //                      ^^^^^^ this calls `IndexMut::index_mut(&mut ..., ..16)`,