For ansible-modules #835 : Add example of exclusion search (#837)

Author: ppbrown

plugins/inventory/nb_inventory.py

@@ -248,8 +248,11 @@
   - role: network-edge-router
 device_query_filters:
   - has_primary_ip: 'true'
+  - tenant__n: internal
 
 # has_primary_ip is a useful way to filter out patch panels and other passive devices
+# Adding '__n' to a field searches for the negation of the value.
+# The above searches for devices that are NOT "tenant = internal"
 
 # Query filters are passed directly as an argument to the fetching queries.
 # You can repeat tags in the query string.