minecraft-packets/minecraft-packets/data/pc/1.19.3/from-server/multi_block_change/1.json

An easy way to query PrismarineJS/minecraft-packets

{
  "chunkCoordinates": {
    "x": 0,
    "z": 3,
    "y": 0
  },
  "suppressLightUpdates": false,
  "records": [
    348590,
    348575
  ]
}