births by decade grapher step

dag/demography.yml

@@ -267,3 +267,5 @@ steps:
   # Mothers by age-group
   data://garden/un/2024-10-01/births_by_age:
     - data://garden/un/2024-07-12/un_wpp
+  data://grapher/un/2024-10-01/births_by_age:
+    - data://garden/un/2024-10-01/births_by_age

etl/steps/data/grapher/un/2024-10-01/un_wpp.py

@@ -0,0 +1,29 @@
+from etl.helpers import PathFinder, create_dataset
+
+# Get paths and naming conventions for current step.
+paths = PathFinder(__file__)
+
+
+def run(dest_dir: str) -> None:
+    #
+    # Load inputs.
+    #
+    # Load garden dataset.
+    ds_garden = paths.load_dataset("births_by_age")
+    #
+    # Process data.
+    #
+    tb = ds_garden["births"]
+    #
+    # Save outputs.
+    #
+    # Create grapher dataset
+    ds_grapher = create_dataset(
+        dest_dir,
+        tables=[tb],
+        check_variables_metadata=True,
+        default_metadata=ds_garden.metadata,
+    )
+
+    # Save changes in the new grapher dataset.
+    ds_grapher.save()