Add integration test

tests/integration/control/serverless/test_index_instantiation_ux.py

@@ -0,0 +1,13 @@
+import pinecone
+import pytest
+
+
+class TestIndexInstantiationUX:
+    def test_index_instantiation_ux(self):
+        with pytest.raises(Exception) as e:
+            pinecone.Index(name="my-index", host="host")
+
+        assert (
+            str(e.value)
+            == "You are attempting to access the Index client directly from the pinecone module."
+        )