docs: note None area levels on emergency requirements

src/didww/resources/emergency_requirement.py

@@ -4,7 +4,10 @@
 class EmergencyRequirement(DidwwApiModel):
     """Emergency requirement resource.
 
-    Resource-level meta: setup_price, monthly_price
+    personal_area_level and business_area_level are None when the country does not
+    accept that kind of identity for emergency calling.
+
+    Resource-level meta: setup_price, monthly_price (decimal strings)
     """
 
     identity_type = SafeAttributeField("identity_type")

tests/fixtures/emergency_calling_services/show_with_includes.yaml

@@ -12,7 +12,7 @@ interactions:
     uri: https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001?include=emergency_requirement%2Cemergency_verification
   response:
     body:
-      string: '{"data":{"id":"ecs-001","type":"emergency_calling_services","attributes":{"name":"US Emergency","reference":"ECS-123","status":"active","activated_at":"2026-04-01T00:00:00.000Z","canceled_at":null,"created_at":"2026-03-15T10:00:00.000Z","renew_date":"2026-05-01"},"relationships":{"emergency_requirement":{"links":{"self":"https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001/relationships/emergency_requirement","related":"https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001/emergency_requirement"},"data":{"type":"emergency_requirements","id":"er-001"}},"emergency_verification":{"links":{"self":"https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001/relationships/emergency_verification","related":"https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001/emergency_verification"},"data":{"type":"emergency_verifications","id":"ev-001"}}}},"included":[{"id":"er-001","type":"emergency_requirements","attributes":{"identity_type":"any","personal_area_level":"worldwide","business_area_level":"worldwide","service_description_required":false}},{"id":"ev-001","type":"emergency_verifications","attributes":{"reference":"EVR-001","status":"approved","reject_reasons":null,"reject_comment":null,"callback_url":null,"callback_method":null,"external_reference_id":null,"created_at":"2026-04-10T10:00:00.000Z"}}],"meta":{"api_version":"2026-04-16"}}'
+      string: '{"data":{"id":"ecs-001","type":"emergency_calling_services","attributes":{"name":"US Emergency","reference":"ECS-123","status":"active","activated_at":"2026-04-01T00:00:00.000Z","canceled_at":null,"created_at":"2026-03-15T10:00:00.000Z","renew_date":"2026-05-01"},"relationships":{"emergency_requirement":{"links":{"self":"https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001/relationships/emergency_requirement","related":"https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001/emergency_requirement"},"data":{"type":"emergency_requirements","id":"er-001"}},"emergency_verification":{"links":{"self":"https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001/relationships/emergency_verification","related":"https://sandbox-api.didww.com/v3/emergency_calling_services/ecs-001/emergency_verification"},"data":{"type":"emergency_verifications","id":"ev-001"}}}},"included":[{"id":"er-001","type":"emergency_requirements","attributes":{"identity_type":"any","personal_area_level":"world_wide","business_area_level":"world_wide","service_description_required":false}},{"id":"ev-001","type":"emergency_verifications","attributes":{"reference":"EVR-001","status":"approved","reject_reasons":null,"reject_comment":null,"callback_url":null,"callback_method":null,"external_reference_id":null,"created_at":"2026-04-10T10:00:00.000Z"}}],"meta":{"api_version":"2026-04-16"}}'
     headers:
       Content-Type:
       - application/vnd.api+json

tests/fixtures/emergency_requirements/list.yaml

@@ -12,7 +12,7 @@ interactions:
     uri: https://sandbox-api.didww.com/v3/emergency_requirements
   response:
     body:
-      string: '{"data":[{"id":"er-001","type":"emergency_requirements","attributes":{"identity_type":"personal","address_area_level":"city","personal_area_level":"country","business_area_level":"country","address_mandatory_fields":["city_name","address"],"personal_mandatory_fields":["first_name","last_name"],"business_mandatory_fields":["company_name"],"estimate_setup_time":"7-14 days","requirement_restriction_message":null},"relationships":{"country":{"links":{"self":"https://sandbox-api.didww.com/v3/emergency_requirements/er-001/relationships/country","related":"https://sandbox-api.didww.com/v3/emergency_requirements/er-001/country"}},"did_group_type":{"links":{"self":"https://sandbox-api.didww.com/v3/emergency_requirements/er-001/relationships/did_group_type","related":"https://sandbox-api.didww.com/v3/emergency_requirements/er-001/did_group_type"}}}}],"meta":{"api_version":"2026-04-16","total_records":1}}'
+      string: '{"data":[{"id":"er-001","type":"emergency_requirements","attributes":{"identity_type":"personal","address_area_level":"city","personal_area_level":"country","business_area_level":null,"address_mandatory_fields":["city_name","address"],"personal_mandatory_fields":["first_name","last_name"],"business_mandatory_fields":[],"estimate_setup_time":"7-14 days","requirement_restriction_message":null},"relationships":{"country":{"links":{"self":"https://sandbox-api.didww.com/v3/emergency_requirements/er-001/relationships/country","related":"https://sandbox-api.didww.com/v3/emergency_requirements/er-001/country"}},"did_group_type":{"links":{"self":"https://sandbox-api.didww.com/v3/emergency_requirements/er-001/relationships/did_group_type","related":"https://sandbox-api.didww.com/v3/emergency_requirements/er-001/did_group_type"}}},"meta":{"setup_price":"0.0","monthly_price":"1.5"}}],"meta":{"api_version":"2026-04-16","total_records":1}}'
     headers:
       Content-Type:
       - application/vnd.api+json

tests/fixtures/emergency_requirements/show.yaml

@@ -12,7 +12,7 @@ interactions:
     uri: https://sandbox-api.didww.com/v3/emergency_requirements/er-001
   response:
     body:
-      string: '{"data":{"id":"er-001","type":"emergency_requirements","attributes":{"identity_type":"personal","address_area_level":"city","personal_area_level":"country","business_area_level":"country","address_mandatory_fields":["city_name","address"],"personal_mandatory_fields":["first_name","last_name"],"business_mandatory_fields":["company_name"],"estimate_setup_time":"7-14 days","requirement_restriction_message":null}},"meta":{"api_version":"2026-04-16"}}'
+      string: '{"data":{"id":"er-001","type":"emergency_requirements","attributes":{"identity_type":"personal","address_area_level":"city","personal_area_level":"country","business_area_level":null,"address_mandatory_fields":["city_name","address"],"personal_mandatory_fields":["first_name","last_name"],"business_mandatory_fields":[],"estimate_setup_time":"7-14 days","requirement_restriction_message":null},"meta":{"setup_price":"0.0","monthly_price":"1.5"}},"meta":{"api_version":"2026-04-16"}}'
     headers:
       Content-Type:
       - application/vnd.api+json

tests/resources/test_emergency_requirement.py

@@ -14,7 +14,12 @@ def test_find_emergency_requirement(self, client):
         assert er.id == "er-001"
         assert er.identity_type == "personal"
         assert er.address_area_level == "city"
+        assert er.personal_area_level == "country"
+        # A country that accepts personal identities only leaves the business level unset.
+        assert er.business_area_level is None
         assert er.estimate_setup_time == "7-14 days"
         assert er.address_mandatory_fields == ["city_name", "address"]
         assert er.personal_mandatory_fields == ["first_name", "last_name"]
         assert er.requirement_restriction_message is None
+        assert er.meta["setup_price"] == "0.0"
+        assert er.meta["monthly_price"] == "1.5"