Add DataSource json_imports and import_status methods (PIP-310)

- DataSource.import_json: POST /data_sources/{uuid}/json_imports
- DataSource.import_status: GET /data_sources/{uuid}/json_imports/{import_id}

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: wscourge

chartmogul/api/data_source.py

@@ -53,3 +53,9 @@ def make(self, data, **kwargs):
             return DataSource(**data)
 
     _schema = _Schema(unknown=EXCLUDE)
+
+
+DataSource.import_json = DataSource._method(
+    "create", "post", "/data_sources{/uuid}/json_imports")
+DataSource.import_status = DataSource._method(
+    "retrieve", "get", "/data_sources{/uuid}/json_imports{/import_id}")

test/api/test_data_source_imports.py

@@ -0,0 +1,52 @@
+import unittest
+
+import requests_mock
+
+from chartmogul import DataSource, Config
+
+
+class DataSourceImportsTestCase(unittest.TestCase):
+
+    @requests_mock.mock()
+    def test_import_json(self, mock_requests):
+        mock_requests.register_uri(
+            "POST",
+            "https://api.chartmogul.com/v1/data_sources/ds_123/json_imports",
+            request_headers={"Authorization": "Basic dG9rZW46"},
+            status_code=200,
+            json={"id": "imp_456"},
+        )
+
+        config = Config("token")
+        result = DataSource.import_json(
+            config, uuid="ds_123", data={"customers": []}
+        ).get()
+
+        self.assertEqual(mock_requests.call_count, 1)
+        self.assertEqual(
+            mock_requests.last_request.json(), {"customers": []}
+        )
+
+    @requests_mock.mock()
+    def test_import_status(self, mock_requests):
+        mock_requests.register_uri(
+            "GET",
+            "https://api.chartmogul.com/v1/data_sources/ds_123/json_imports/imp_456",
+            request_headers={"Authorization": "Basic dG9rZW46"},
+            status_code=200,
+            json={
+                "uuid": "ds_123",
+                "name": "test",
+                "created_at": "2025-01-01T00:00:00.000Z",
+                "status": "idle",
+                "system": "Import API",
+            },
+        )
+
+        config = Config("token")
+        result = DataSource.import_status(
+            config, uuid="ds_123", import_id="imp_456"
+        ).get()
+
+        self.assertEqual(mock_requests.call_count, 1)
+        self.assertTrue(isinstance(result, DataSource))