Implemented LATENCY HISTOGRAM by always throwing NotImplementedError (#2147)

Co-authored-by: Chayim <[email protected]>

Author: dvora-h

redis/commands/core.py

@@ -1064,6 +1064,15 @@ def memory_purge(self, **kwargs) -> ResponseT:
         """
         return self.execute_command("MEMORY PURGE", **kwargs)
 
+    def latency_histogram(self, *args):
+        """
+        This function throws a NotImplementedError since it is intentionally
+        not supported.
+        """
+        raise NotImplementedError(
+            "LATENCY HISTOGRAM is intentionally not implemented in the client."
+        )
+
     def ping(self, **kwargs) -> ResponseT:
         """
         Ping the Redis server

tests/test_commands.py

@@ -4458,6 +4458,11 @@ def test_memory_usage(self, r):
         r.set("foo", "bar")
         assert isinstance(r.memory_usage("foo"), int)
 
+    @skip_if_server_version_lt("7.0.0")
+    def test_latency_histogram_not_implemented(self, r: redis.Redis):
+        with pytest.raises(NotImplementedError):
+            r.latency_histogram()
+
     @pytest.mark.onlynoncluster
     @skip_if_server_version_lt("4.0.0")
     @skip_if_redis_enterprise()