Task: Create, update, and get an incident on PagerDuty

n8n workflow JSON:
{"id":"158","name":"Create, update, and get an incident on PagerDuty","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[240,260],"parameters":{},"typeVersion":1},{"name":"PagerDuty","type":"n8n-nodes-base.pagerDuty","position":[440,260],"parameters":{"email":"","title":"Firewall on Fire","serviceId":"","additionalFields":{}},"credentials":{"pagerDutyApi":""},"typeVersion":1},{"name":"PagerDuty2","type":"n8n-nodes-base.pagerDuty","position":[840,260],"parameters":{"operation":"get","incidentId":"={{$node[\"PagerDuty1\"].json[\"id\"]}}"},"credentials":{"pagerDutyApi":""},"typeVersion":1},{"name":"PagerDuty1","type":"n8n-nodes-base.pagerDuty","position":[640,260],"parameters":{"email":"={{$node[\"PagerDuty\"].parameter[\"email\"]}}","operation":"update","incidentId":"={{$node[\"PagerDuty\"].json[\"id\"]}}","updateFields":{"title":"Firewalls on Fire"}},"credentials":{"pagerDutyApi":""},"typeVersion":1}],"active":false,"settings":{},"connections":{"PagerDuty":{"main":[[{"node":"PagerDuty1","type":"main","index":0}]]},"PagerDuty1":{"main":[[{"node":"PagerDuty2","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"PagerDuty","type":"main","index":0}]]}}}