Task: Split Out Binary Data

n8n workflow JSON:
{"nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[240,300],"parameters":{},"typeVersion":1},{"name":"Split Up Binary Data","type":"n8n-nodes-base.function","position":[900,300],"parameters":{"functionCode":"let results = [];\n\nfor (item of items) {\n    for (key of Object.keys(item.binary)) {\n        results.push({\n            json: {\n                fileName: item.binary[key].fileName\n            },\n            binary: {\n                data: item.binary[key],\n            }\n        });\n    }\n}\n\nreturn results;"},"typeVersion":1},{"name":"Download Example Data","type":"n8n-nodes-base.httpRequest","position":[460,300],"parameters":{"url":"https://static.thomasmartens.eu/n8n/three_more_files.zip","options":{},"responseFormat":"file"},"typeVersion":1},{"name":"Decompress Example Data","type":"n8n-nodes-base.compression","position":[680,300],"parameters":{},"typeVersion":1},{"name":"Note","type":"n8n-nodes-base.stickyNote","position":[420,120],"parameters":{"width":400,"height":360,"content":"## Example Data\nThe first two nodes simply fetch some example data to work with.\n\nIn the real world, you'd probably process incoming emails, uploaded FTP files or something similar instead."},"typeVersion":1},{"name":"Note1","type":"n8n-nodes-base.stickyNote","position":[860,120],"parameters":{"width":320,"height":360,"content":"## Transformation\nThis is where the magic happens. Incoming files are split up into individual items, each with a single binary data object under the `data` key."},"typeVersion":1}],"connections":{"Download Example Data":{"main":[[{"node":"Decompress Example Data","type":"main","index":0}]]},"On clicking 'execute'":{"main":[[{"node":"Download Example Data","type":"main","index":0}]]},"Decompress Example Data":{"main":[[{"node":"Split Up Binary Data","type":"main","index":0}]]}}}