List task specs

{  "taskSpecs": [    {      "allowedResourceProfiles": [        {          "cpu": 0,          "id": "cpu_1",          "memoryGib": "string"        }      ],      "defaultResourceProfile": "cpu_1",      "overlapPolicy": "allow_all",      "taskSpecId": {        "name": "string",        "version": 0      }    }  ]}