fix doc

crates/polars-compute/src/hyperloglogplus.rs

@@ -9,7 +9,7 @@
 //! # Examples
 //!
 //! ```
-//!     # use polars_ops::prelude::*;
+//!     # use polars_compute::hyperloglogplus::*;
 //!     let mut hllp = HyperLogLog::new();
 //!     hllp.add(&12345);
 //!     hllp.add(&23456);