[QQC-2962] Add a method to get label count for project (#1380)

Author: mkozik-lb

labelbox/schema/project.py

@@ -1149,6 +1149,20 @@ def _update_queue_mode(self, mode: "QueueMode") -> "QueueMode":
 
         return mode
 
+    def get_label_count(self) -> int:
+        """
+        Returns: the total number of labels in this project.
+        """
+
+        query_str = """query LabelCountPyApi($projectId: ID!) {
+            project(where: {id: $projectId}) {
+                labelCount
+            }
+        }"""
+
+        res = self.client.execute(query_str, {'projectId': self.uid})
+        return res["project"]["labelCount"]
+
     def get_queue_mode(self) -> "QueueMode":
         """
         Provides the queue mode used for this project.

tests/integration/test_project.py

@@ -280,3 +280,13 @@ def test_queue_mode(client, rand_gen):
                                     quality_mode=QualityMode.Consensus)
     assert project.auto_audit_number_of_labels == 3
     assert project.auto_audit_percentage == 0
+
+
+def test_label_count(client, configured_batch_project_with_label):
+    project = client.create_project(name="test label count")
+    assert project.get_label_count() == 0
+    project.delete()
+
+    [source_project, _, _, _] = configured_batch_project_with_label
+    num_labels = sum([1 for _ in source_project.labels()])
+    assert source_project.get_label_count() == num_labels