fix import error for pylint in example3

Author: dgarros

examples/example3/local_adapter.py

@@ -1,7 +1,7 @@
 """DiffSync adapter to load data from a local file."""
 import json
 
-from slugify import slugify
+from slugify import slugify  # pylint: disable=import-error
 
 from models import Region, Country
 from diffsync import DiffSync

examples/example3/nautobot_adapter.py

@@ -1,6 +1,6 @@
 """DiffSync Adapter for Nautobot to manage regions."""
 import os
-import pynautobot
+import pynautobot  # pylint: disable=import-error
 
 from nautobot_models import NautobotCountry, NautobotRegion
 

examples/example3/nautobot_models.py

@@ -1,5 +1,5 @@
 """Extension of the Base model for the Nautobot DiffSync Adapter to manage the CRUD operations."""
-import pynautobot
+import pynautobot  # pylint: disable=import-error
 
 from models import Region, Country