from cognite.client.data_classes.data_modeling import DataModelApply
data_models = [
    DataModelApply(space="mySpace",external_id="myDataModel",version="v1"),
    DataModelApply(space="mySpace",external_id="myOtherDataModel",version="v1")]
res = client.data_modeling.data_models.apply(data_models)

{
  "items": [
    {
      "space": "<string>",
      "externalId": "<string>",
      "version": "<string>",
      "createdTime": 1730204346000,
      "lastUpdatedTime": 1730204346000,
      "isGlobal": true,
      "name": "<string>",
      "description": "<string>",
      "views": [
        {
          "space": "<string>",
          "externalId": "<string>",
          "version": "<string>"
        }
      ]
    }
  ]
}