curl --request PUT \
  --url https://api.hubapi.com/properties/v1/deals/groups/named/{group_name} \
  --header 'Content-Type: application/json' \
  --data '
{
  "displayName": "<string>",
  "displayOrder": 123,
  "properties": [
    {
      "name": "<string>",
      "label": "<string>",
      "groupName": "<string>",
      "description": "<string>",
      "options": [
        {
          "label": "<string>",
          "value": "<string>",
          "description": "<string>",
          "displayOrder": 123,
          "hidden": true
        }
      ],
      "displayOrder": 123,
      "formField": true
    }
  ]
}
'

import requests

url = "https://api.hubapi.com/properties/v1/deals/groups/named/{group_name}"

payload = {
    "displayName": "<string>",
    "displayOrder": 123,
    "properties": [
        {
            "name": "<string>",
            "label": "<string>",
            "groupName": "<string>",
            "description": "<string>",
            "options": [
                {
                    "label": "<string>",
                    "value": "<string>",
                    "description": "<string>",
                    "displayOrder": 123,
                    "hidden": True
                }
            ],
            "displayOrder": 123,
            "formField": True
        }
    ]
}
headers = {"Content-Type": "application/json"}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    displayName: '<string>',
    displayOrder: 123,
    properties: [
      {
        name: '<string>',
        label: '<string>',
        groupName: '<string>',
        description: '<string>',
        options: [
          {
            label: '<string>',
            value: '<string>',
            description: '<string>',
            displayOrder: 123,
            hidden: true
          }
        ],
        displayOrder: 123,
        formField: true
      }
    ]
  })
};

fetch('https://api.hubapi.com/properties/v1/deals/groups/named/{group_name}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.hubapi.com/properties/v1/deals/groups/named/{group_name}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'displayName' => '<string>',
    'displayOrder' => 123,
    'properties' => [
        [
                'name' => '<string>',
                'label' => '<string>',
                'groupName' => '<string>',
                'description' => '<string>',
                'options' => [
                                [
                                                                'label' => '<string>',
                                                                'value' => '<string>',
                                                                'description' => '<string>',
                                                                'displayOrder' => 123,
                                                                'hidden' => true
                                ]
                ],
                'displayOrder' => 123,
                'formField' => true
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.hubapi.com/properties/v1/deals/groups/named/{group_name}"

	payload := strings.NewReader("{\n  \"displayName\": \"<string>\",\n  \"displayOrder\": 123,\n  \"properties\": [\n    {\n      \"name\": \"<string>\",\n      \"label\": \"<string>\",\n      \"groupName\": \"<string>\",\n      \"description\": \"<string>\",\n      \"options\": [\n        {\n          \"label\": \"<string>\",\n          \"value\": \"<string>\",\n          \"description\": \"<string>\",\n          \"displayOrder\": 123,\n          \"hidden\": true\n        }\n      ],\n      \"displayOrder\": 123,\n      \"formField\": true\n    }\n  ]\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://api.hubapi.com/properties/v1/deals/groups/named/{group_name}")
  .header("Content-Type", "application/json")
  .body("{\n  \"displayName\": \"<string>\",\n  \"displayOrder\": 123,\n  \"properties\": [\n    {\n      \"name\": \"<string>\",\n      \"label\": \"<string>\",\n      \"groupName\": \"<string>\",\n      \"description\": \"<string>\",\n      \"options\": [\n        {\n          \"label\": \"<string>\",\n          \"value\": \"<string>\",\n          \"description\": \"<string>\",\n          \"displayOrder\": 123,\n          \"hidden\": true\n        }\n      ],\n      \"displayOrder\": 123,\n      \"formField\": true\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.hubapi.com/properties/v1/deals/groups/named/{group_name}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"displayName\": \"<string>\",\n  \"displayOrder\": 123,\n  \"properties\": [\n    {\n      \"name\": \"<string>\",\n      \"label\": \"<string>\",\n      \"groupName\": \"<string>\",\n      \"description\": \"<string>\",\n      \"options\": [\n        {\n          \"label\": \"<string>\",\n          \"value\": \"<string>\",\n          \"description\": \"<string>\",\n          \"displayOrder\": 123,\n          \"hidden\": true\n        }\n      ],\n      \"displayOrder\": 123,\n      \"formField\": true\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "name": "<string>",
  "displayName": "<string>",
  "displayOrder": 123,
  "hubspotDefined": true,
  "properties": [
    {
      "name": "<string>",
      "label": "<string>",
      "description": "<string>",
      "groupName": "<string>",
      "type": "string",
      "fieldType": "textarea",
      "options": [
        {
          "description": "<string>",
          "label": "<string>",
          "value": "<string>",
          "displayOrder": 123,
          "hidden": true,
          "readOnly": true,
          "doubleData": 123
        }
      ],
      "displayOrder": 123,
      "formField": true,
      "readOnlyValue": true,
      "readOnlyDefinition": true,
      "hidden": true,
      "mutableDefinitionNotDeletable": true,
      "favorited": true,
      "favoritedOrder": 123,
      "calculated": true,
      "externalOptions": true,
      "displayMode": "<string>",
      "hubspotDefined": true,
      "createdAt": 123,
      "updatedAt": 123,
      "createdUserId": 123,
      "updatedUserId": 123
    }
  ]
}