Task: n8n Nodemation basic - getting started on the workflow canvas (1/3)

n8n workflow JSON:
{"id":"5","name":"testworkflow","nodes":[{"name":"FunctionItem","type":"n8n-nodes-base.functionItem","color":"#067325","position":[860,680],"parameters":{"functionCode":"item.myVariable = 1;\nitem.myVariable2 = \"this is exciting\";\nreturn item;"},"typeVersion":1},{"name":"2 hours Interval","type":"n8n-nodes-base.interval","color":"#FF2A00","notes":"It is the 4 hours interval in which this node gets executed","position":[630,680],"parameters":{"unit":"hours","interval":2},"typeVersion":1},{"name":"Set","type":"n8n-nodes-base.set","position":[1040,680],"parameters":{"values":{"string":[{"name":"data","value":"={{$node[\"FunctionItem\"].data[\"myVariable2\"]}}"}]},"keepOnlySet":true},"typeVersion":1}],"active":false,"settings":{},"connections":{"FunctionItem":{"main":[[{"node":"Set","type":"main","index":0}]]},"2 hours Interval":{"main":[[{"node":"FunctionItem","type":"main","index":0}]]}}}