Task: Create, update, and get a document in Google Cloud Firestore

n8n workflow JSON:
{"id":"179","name":"Create, update, and get a document in Google Cloud Firestore","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[250,300],"parameters":{},"typeVersion":1},{"name":"Google Cloud Firestore","type":"n8n-nodes-base.googleFirebaseCloudFirestore","position":[650,300],"parameters":{"columns":"id, name","operation":"create","projectId":"docs-f8925","collection":"n8n"},"credentials":{"googleFirebaseCloudFirestoreOAuth2Api":"Cloud Firestore Credentials"},"typeVersion":1},{"name":"Set","type":"n8n-nodes-base.set","position":[450,300],"parameters":{"values":{"number":[{"name":"id","value":1}],"string":[{"name":"name","value":"n8n"}]},"options":{}},"typeVersion":1},{"name":"Set1","type":"n8n-nodes-base.set","position":[850,300],"parameters":{"values":{"string":[{"name":"name","value":"nodemation"},{"name":"document_id","value":"={{$node[\"Google Cloud Firestore\"].json[\"_id\"]}}"}]},"options":{},"keepOnlySet":true},"typeVersion":1},{"name":"Google Cloud Firestore1","type":"n8n-nodes-base.googleFirebaseCloudFirestore","position":[1050,300],"parameters":{"columns":"name","operation":"upsert","projectId":"={{$node[\"Google Cloud Firestore\"].parameter[\"projectId\"]}}","updateKey":"document_id","collection":"={{$node[\"Google Cloud Firestore\"].parameter[\"collection\"]}}"},"credentials":{"googleFirebaseCloudFirestoreOAuth2Api":"Cloud Firestore Credentials"},"typeVersion":1},{"name":"Google Cloud Firestore2","type":"n8n-nodes-base.googleFirebaseCloudFirestore","position":[1250,300],"parameters":{"projectId":"={{$node[\"Google Cloud Firestore\"].parameter[\"projectId\"]}}","collection":"={{$node[\"Google Cloud Firestore\"].parameter[\"collection\"]}}","documentId":"={{$node[\"Set1\"].json[\"document_id\"]}}"},"credentials":{"googleFirebaseCloudFirestoreOAuth2Api":"Cloud Firestore Credentials"},"typeVersion":1}],"active":false,"settings":{},"connections":{"Set":{"main":[[{"node":"Google Cloud Firestore","type":"main","index":0}]]},"Set1":{"main":[[{"node":"Google Cloud Firestore1","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"Set","type":"main","index":0}]]},"Google Cloud Firestore":{"main":[[{"node":"Set1","type":"main","index":0}]]},"Google Cloud Firestore1":{"main":[[{"node":"Google Cloud Firestore2","type":"main","index":0}]]}}}