Replace seperate filter and map with filter_map

src/lib.rs

@@ -318,8 +318,7 @@ impl FuzzyPublicKey {
             let results: Vec<FuzzyTag> = (0..8)
                 .into_par_iter()
                 .map(|_x| FuzzyPublicKey::try_entangled_tag(arc_public_keys.clone(), length))
-                .filter(|x| x.is_ok())
-                .map(|x| x.unwrap())
+                .filter_map(|x| x.ok())
                 .collect();
             if results.is_empty() == false {
                 return results[0].clone();