const sequences = [
 {
  externalId: 'sequence_name',
  columns: [
   {
     externalId: 'one',
     valueType: SequenceValueType.LONG,
   },
   {
     externalId: 'two',
   },
   {
     externalId: 'three',
     valueType: SequenceValueType.STRING,
   }
  ]
 }
];
const [sequence] = await client.sequences.create(sequences);

{
  "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
    }
  ]
}