const [sequence1, sequence2] = await client.sequences.retrieve([{id: 123}, {externalId: 'abc'}]);

res = client.sequences.retrieve(id=1)

res = client.sequences.retrieve()
res = client.sequences.retrieve_multiple(ids=[1, 2, 3])

res = client.sequences.retrieve_multiple(external_ids=["abc", "def"])

List<SequenceMetadata> retrievedByExternalIds = client.sequences().retrieve("10");//by varargs of String 
List<Item> listItemsExternalIds = List.of(Item.newBuilder().setExternalId("10").build()); 
List<SequenceMetadata> retrievedSequencesExternalIds = client.sequences().retrieve(listItemsExternalIds);//by list of items 

List<SequenceMetadata> retrievedByInternalIds = client.sequences().retrieve(10, 20);//by varargs of Long 
List<Item> listItemsInternalIds = List.of(Item.newBuilder().setId(10).build()); 
List<SequenceMetadata> retrievedSequencesInternalIds = client.sequences().retrieve(listItemsInternalIds);

curl --request POST \
  --url https://{cluster}.cognitedata.com/api/v1/projects/{project}/sequences/byids \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "items": [
    {
      "id": 4503599627370496
    }
  ],
  "ignoreUnknownIds": false
}
'

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{cluster}.cognitedata.com/api/v1/projects/{project}/sequences/byids",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'items' => [
        [
                'id' => 4503599627370496
        ]
    ],
    'ignoreUnknownIds' => false
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "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://{cluster}.cognitedata.com/api/v1/projects/{project}/sequences/byids"

	payload := strings.NewReader("{\n  \"items\": [\n    {\n      \"id\": 4503599627370496\n    }\n  ],\n  \"ignoreUnknownIds\": false\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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))

}

require 'uri'
require 'net/http'

url = URI("https://{cluster}.cognitedata.com/api/v1/projects/{project}/sequences/byids")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"items\": [\n    {\n      \"id\": 4503599627370496\n    }\n  ],\n  \"ignoreUnknownIds\": false\n}"

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

{
  "items": [
    {
      "id": 1,
      "columns": [
        {
          "valueType": "DOUBLE",
          "createdTime": 100000000000,
          "lastUpdatedTime": 100000000000,
          "name": "depth",
          "externalId": "DPS1",
          "description": "Optional description",
          "metadata": {
            "extracted-by": "cognite"
          }
        }
      ],
      "createdTime": 100000000000,
      "lastUpdatedTime": 100000000000,
      "name": "Any relevant name",
      "description": "Optional description",
      "assetId": 1221123111,
      "externalId": "my.known.id",
      "metadata": {
        "extracted-by": "cognite"
      },
      "dataSetId": 2718281828459
    }
  ]
}