tst.schema

{
  "$schema": "http://json-schema.org/schema#",
  "type": "object",
  "properties": {
    "version" : {
      "type": "string",
      "const": "1.0"
    },
    "tst": {
      "type": "object",
      "additionalProperties": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "target_temp": {
                "type": "string"
              },
              "dtype": {
                "type": "string"
              },
              "gpu_id": {
                "type": "string"
              },
              "gpu_index": {
                "type": "string"
              },
              "average edge temperature": {
                "type": "string"
              },
              "pass": {
                "type": "string"
              }
            }
        },
       "minItems": 1
      }
    }
  },
  "required": [
    "tst"
  ]
}