Input Variant Only

{
  "variants": {
    "pure": { "enabled": false },
    "input": { "enabled": true },
    "result": { "enabled": false },
  },
  "emit": { "pureModels": false },
}

For update operations, enable the partial flag to make all fields optional:

{
  "variants": {
    "pure": { "enabled": false },
    "input": {
      "enabled": true,
      "partial": true  // Makes all fields optional with .partial()
    },
    "result": { "enabled": false },
  },
  "emit": { "pureModels": false },
}

Good for request validation only.