Updated gap.py to support older Python versions

inventory_provider/gap.py

 import concurrent.futures
 import logging
 import socket
+from typing import Dict, Optional
 
 import requests
 from requests.adapters import HTTPAdapter
@@ -52,7 +53,7 @@ def get_token(aai_config: dict) -> str:
     return response.json()['access_token']
 
 
-def make_request(body: dict, token: str, app_config: dict) -> dict:
+def make_request(body: dict, token: str, app_config: dict) -> Dict:
     """Make a request to the orchestrator using the given body."""
     api_url = f'{app_config["orchestrator"]["url"]}/api/graphql'
     headers = {'Authorization': f'Bearer {token}'}
@@ -66,14 +67,15 @@ def make_request(body: dict, token: str, app_config: dict) -> dict:
     response = session.post(api_url, headers=headers, json=body)
     response.raise_for_status()
     # The graphql API returns a 200 status code even if there are errors in the response
-    if errors := response.json().get('errors'):
+    errors = response.json().get('errors')
+    if errors:
         err_msg = f'GraphQL query returned errors: {errors}'
         logger.error(err_msg)
         raise ValueError(err_msg)
     return response.json()
 
 
-def extract_router_info(device: dict, token: str, app_config: dict) -> dict or None:
+def extract_router_info(device: dict, token: str, app_config: dict) -> Optional[dict]:
     tag_to_key_map = {
         "RTR": "router",
         "OFFICE_ROUTER": "officeRouter",
@@ -122,7 +124,7 @@ def extract_router_info(device: dict, token: str, app_config: dict) -> dict or N
         return None
 
 
-def load_routers_from_orchestrator(app_config: dict) -> dict:
+def load_routers_from_orchestrator(app_config: dict) -> Dict:
     """Gets devices from the orchestrator and returns a dictionary of FQDNs and vendors."""
     token = get_token(app_config['aai'])
     routers = {}

inventory_provider/routes/poller.py

@@ -940,7 +940,7 @@ def load_error_report_interfaces(
                 )
             )
 
-    def transform_interface(interface: dict) -> dict:
+    def transform_interface(interface: dict) -> Dict:
         return {
             "router": interface["router"],
             "name": interface["name"],