Hello, I have been trying to obtain an odoo registry for months, but I have not been able to find the solution because of the little documentation that exists.

I am using json rpc in javascript, this is the query I am trying to make but it returns an empty record:
const requestAbsenceEmployeeByIdsBody = 
{ jsonrpc: "2.0", 
 method: "call", 
 params: { service: "object", 
​ method: "execute", 
​ args: [ 
​ ​ ODOO_DB, 
​  ​uid, 
​ ​ ODOO_PASSWORD, 
​  ​"hr.leave.type", 
​  ​"get_days_all_request",
​ ​ ], 
​ kwargs: [ 
​ ​ { context: { 
​ ​ ​ lang: "es_CL", 
​ ​ ​ tz: "America/Santiago", 
​ ​ ​ uid: 2, 
​ ​ ​ allowed_company_ids: [3],
​ ​ ​ params: { 
​ ​ ​ ​ id: 195, 
​ ​ ​ ​ cids: 3, 
​ ​ ​ ​ menu_id: 555, 
​ ​ ​ ​ action: 752, 
​ ​ ​ ​ model: "hr.employee", 
​ ​ ​ ​ view_type: "form", 
​ ​ ​ }, 
​ ​ ​ chat_icon: true,
​ ​ ​ search_default_employee_id: 195, 
​ ​ ​ active_model: "hr.employee", 
​ ​ ​ active_id: 195, 
​ ​ ​ active_ids: [195], 
​ ​ ​ employee_id: [195], 
​ ​ ​ default_employee_id: 195, 
​ ​ ​ }, 
​ ​ },
​ ], 
}, 
 };

const { data } = await odooInstance.post( "/jsonrpc", requestAbsenceEmployeeByIdsBody );

console.log(data)

but this is the answer that comes back to me: { jsonrpc: '2.0', id: null, result: [] }

checking the payload it sends in my browser console, it does the following:
{

  "id": 32,

  "jsonrpc": "2.0",

  "method": "call",

  "params": {

    "args": [],

    "model": "hr.leave.type",

    "method": "get_days_all_request",

    "kwargs": {

      "context": {

        "lang": "es_CL",

        "tz": "America/Santiago",

        "uid": 2,

        "allowed_company_ids": [

          3

        ],

        "params": {

          "id": 195,

          "cids": 3,

          "menu_id": 555,

          "action": 752,

          "model": "hr.employee",

          "view_type": "form"

        },

        "chat_icon": true,

        "search_default_employee_id": 195,

        "active_model": "hr.employee",

        "active_id": 195,

        "active_ids": [

          195

        ],

        "employee_id": [

          195

        ],

        "default_employee_id": 195

      }

    }

  }

}

I have tried to replicate this in my request, as I showed at the beginning, but I have not been able to find a solution, I really don't know what else to do, I would be grateful for life if someone helps me with