Feature/add instance type images query

CHANGELOG.md

@@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Support for querying OS images by instance type via `verda.images.get(instance_type=...)`
+
+### Changed
+
+- Refactored `Image` model to use `@dataclass` and `@dataclass_json` for consistency with `Instance` and `Volume`
+
 ## [1.24.0] - 2026-03-30
 
 ### Added

tests/unit_tests/images/test_images.py

@@ -1,21 +1,24 @@
+import json
+
 import responses  # https://github.com/getsentry/responses
+from responses import matchers
 
 from verda.images import Image, ImagesService
 
+IMAGE_RESPONSE = {
+    'id': '0888da25-bb0d-41cc-a191-dccae45d96fd',
+    'name': 'Ubuntu 20.04 + CUDA 11.0',
+    'details': ['Ubuntu 20.04', 'CUDA 11.0'],
+    'image_type': 'ubuntu-20.04-cuda-11.0',
+}
+
 
 def test_images(http_client):
-    # arrange - add response mock
+    # arrange
     responses.add(
         responses.GET,
         http_client._base_url + '/images',
-        json=[
-            {
-                'id': '0888da25-bb0d-41cc-a191-dccae45d96fd',
-                'name': 'Ubuntu 20.04 + CUDA 11.0',
-                'details': ['Ubuntu 20.04', 'CUDA 11.0'],
-                'image_type': 'ubuntu-20.04-cuda-11.0',
-            }
-        ],
+        json=[IMAGE_RESPONSE],
         status=200,
     )
 
@@ -34,4 +37,27 @@ def test_images(http_client):
     assert isinstance(images[0].details, list)
     assert images[0].details[0] == 'Ubuntu 20.04'
     assert images[0].details[1] == 'CUDA 11.0'
-    assert isinstance(images[0].__str__(), str)
+    assert json.loads(str(images[0])) == IMAGE_RESPONSE
+
+
+def test_images_filter_by_instance_type(http_client):
+    # arrange
+    responses.add(
+        responses.GET,
+        http_client._base_url + '/images',
+        match=[matchers.query_param_matcher({'instance_type': '1A100.22V'})],
+        json=[IMAGE_RESPONSE],
+        status=200,
+    )
+
+    image_service = ImagesService(http_client)
+
+    # act
+    images = image_service.get(instance_type='1A100.22V')
+
+    # assert
+    assert isinstance(images, list)
+    assert len(images) == 1
+    assert isinstance(images[0], Image)
+    assert images[0].id == '0888da25-bb0d-41cc-a191-dccae45d96fd'
+    assert images[0].image_type == 'ubuntu-20.04-cuda-11.0'

verda/images/_images.py

@@ -1,71 +1,29 @@
-from verda.helpers import stringify_class_object_properties
+from dataclasses import dataclass
+
+from dataclasses_json import Undefined, dataclass_json
 
 IMAGES_ENDPOINT = '/images'
 
 
+@dataclass_json(undefined=Undefined.EXCLUDE)
+@dataclass
 class Image:
-    """An image model class."""
-
-    def __init__(self, id: str, name: str, image_type: str, details: list[str]) -> None:
-        """Initialize an image object.
-
-        :param id: image id
-        :type id: str
-        :param name: image name
-        :type name: str
-        :param image_type: image type, e.g. 'ubuntu-20.04-cuda-11.0'
-        :type image_type: str
-        :param details: image details
-        :type details: list[str]
-        """
-        self._id = id
-        self._name = name
-        self._image_type = image_type
-        self._details = details
-
-    @property
-    def id(self) -> str:
-        """Get the image id.
+    """Represents an OS image available for instances.
 
-        :return: image id
-        :rtype: str
-        """
-        return self._id
-
-    @property
-    def name(self) -> str:
-        """Get the image name.
-
-        :return: image name
-        :rtype: str
-        """
-        return self._name
+    Attributes:
+        id: Unique identifier for the image.
+        name: Human-readable name of the image.
+        image_type: Image type identifier, e.g. 'ubuntu-20.04-cuda-11.0'.
+        details: List of additional image details.
+    """
 
-    @property
-    def image_type(self) -> str:
-        """Get the image type.
-
-        :return: image type
-        :rtype: str
-        """
-        return self._image_type
-
-    @property
-    def details(self) -> list[str]:
-        """Get the image details.
-
-        :return: image details
-        :rtype: list[str]
-        """
-        return self._details
+    id: str
+    name: str
+    image_type: str
+    details: list[str]
 
     def __str__(self) -> str:
-        """Returns a string of the json representation of the image.
-
-        :return: json representation of the image
-        :rtype: str
-        """
-        return stringify_class_object_properties(self)
+        return self.to_json(indent=2)
 
 
 class ImagesService:
@@ -74,15 +32,16 @@ class ImagesService:
     def __init__(self, http_client) -> None:
         self._http_client = http_client
 
-    def get(self) -> list[Image]:
+    def get(self, instance_type: str | None = None) -> list[Image]:
         """Get the available instance images.
 
-        :return: list of images objects
-        :rtype: list[Image]
+        Args:
+            instance_type: Filter OS images by instance type, e.g. '1A100.22V'.
+                Default is all instance images.
+
+        Returns:
+            List of Image objects.
         """
-        images = self._http_client.get(IMAGES_ENDPOINT).json()
-        image_objects = [
-            Image(image['id'], image['name'], image['image_type'], image['details'])
-            for image in images
-        ]
-        return image_objects
+        params = {'instance_type': instance_type} if instance_type else None
+        images = self._http_client.get(IMAGES_ENDPOINT, params=params).json()
+        return [Image.from_dict(image) for image in images]