curl --request PUT \
  --url https://cloud-api.phala.com/api/v1/cvms/{cvm_id}/annotations \
  --header 'Content-Type: application/json' \
  --data '
{
  "annotations": {
    "memory_tier": "fast"
  }
}
'

import requests

url = "https://cloud-api.phala.com/api/v1/cvms/{cvm_id}/annotations"

payload = { "annotations": { "memory_tier": "fast" } }
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({annotations: {memory_tier: 'fast'}})
};

fetch('https://cloud-api.phala.com/api/v1/cvms/{cvm_id}/annotations', 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://cloud-api.phala.com/api/v1/cvms/{cvm_id}/annotations",
  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([
    'annotations' => [
        'memory_tier' => 'fast'
    ]
  ]),
  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://cloud-api.phala.com/api/v1/cvms/{cvm_id}/annotations"

	payload := strings.NewReader("{\n  \"annotations\": {\n    \"memory_tier\": \"fast\"\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://cloud-api.phala.com/api/v1/cvms/{cvm_id}/annotations")
  .header("Content-Type", "application/json")
  .body("{\n  \"annotations\": {\n    \"memory_tier\": \"fast\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://cloud-api.phala.com/api/v1/cvms/{cvm_id}/annotations")

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  \"annotations\": {\n    \"memory_tier\": \"fast\"\n  }\n}"

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

{
  "annotations": {}
}

{
  "error_code": "<string>",
  "message": "<string>",
  "details": [
    {
      "field": "<string>",
      "value": null,
      "message": "<string>"
    }
  ],
  "suggestions": [
    "<string>"
  ],
  "links": [
    {
      "url": "<string>",
      "label": "<string>"
    }
  ],
  "request_id": "<string>"
}

{
  "error_code": "<string>",
  "message": "<string>",
  "details": [
    {
      "field": "<string>",
      "value": null,
      "message": "<string>"
    }
  ],
  "suggestions": [
    "<string>"
  ],
  "links": [
    {
      "url": "<string>",
      "label": "<string>"
    }
  ],
  "request_id": "<string>"
}

{
  "error_code": "<string>",
  "message": "<string>",
  "details": [
    {
      "field": "<string>",
      "value": null,
      "message": "<string>"
    }
  ],
  "suggestions": [
    "<string>"
  ],
  "links": [
    {
      "url": "<string>",
      "label": "<string>"
    }
  ],
  "request_id": "<string>"
}