feat: Update ApiErrorResponse to inherit from JsonModel and modify get_spec return type

Signed-off-by: Vishnu Govindaraj <[email protected]>

Author: Vishnu Govindaraj

nisystemlink/clients/core/_api_error_response.py

@@ -1,7 +1,8 @@
 from nisystemlink.clients.core._api_error import ApiError
+from nisystemlink.clients.core._uplink._json_model import JsonModel
 
 
-class ApiErrorResponse:
+class ApiErrorResponse(JsonModel):
     """Represents an error response from the SystemLink API responses."""
 
     error: ApiError

nisystemlink/clients/spec/_spec_client.py

@@ -1,6 +1,6 @@
 """Implementation of SpecClient"""
 
-from typing import List, Optional
+from typing import List, Optional, Union
 
 from nisystemlink.clients import core
 from nisystemlink.clients.core._api_error_response import ApiErrorResponse
@@ -98,7 +98,7 @@ def query_specs(
         ...
 
     @get("specs/{id}")
-    def get_spec(self, id: str) -> models.Specification | ApiErrorResponse:
+    def get_spec(self, id: str) -> Union[models.Specification, ApiErrorResponse]:
         """Retrieves a single spec by id.
 
         Args: