DOC-4237 added Bloom filter examples (redis#3115)

Co-authored-by: Vladyslav Vildanov <[email protected]>

Author: andy-stark-redis

Diff for: doctests/bf_tutorial_test.go

@@ -0,0 +1,83 @@
+// EXAMPLE: bf_tutorial
+// HIDE_START
+package example_commands_test
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/redis/go-redis/v9"
+)
+
+// HIDE_END
+
+func ExampleClient_bloom() {
+	ctx := context.Background()
+
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     "localhost:6379",
+		Password: "", // no password docs
+		DB:       0,  // use default DB
+	})
+
+	// REMOVE_START
+	rdb.Del(ctx, "bikes:models")
+	// REMOVE_END
+
+	// STEP_START bloom
+	res1, err := rdb.BFReserve(ctx, "bikes:models", 0.01, 1000).Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(res1) // >>> OK
+
+	res2, err := rdb.BFAdd(ctx, "bikes:models", "Smoky Mountain Striker").Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(res2) // >>> true
+
+	res3, err := rdb.BFExists(ctx, "bikes:models", "Smoky Mountain Striker").Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(res3) // >>> true
+
+	res4, err := rdb.BFMAdd(ctx, "bikes:models",
+		"Rocky Mountain Racer",
+		"Cloudy City Cruiser",
+		"Windy City Wippet",
+	).Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(res4) // >>> [true true true]
+
+	res5, err := rdb.BFMExists(ctx, "bikes:models",
+		"Rocky Mountain Racer",
+		"Cloudy City Cruiser",
+		"Windy City Wippet",
+	).Result()
+
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(res5) // >>> [true true true]
+	// STEP_END
+
+	// Output:
+	// OK
+	// true
+	// true
+	// [true true true]
+	// [true true true]
+}