Create data_merger.py

helper/data_merger.py

@@ -0,0 +1,20 @@
+def merge_acq_perf(
+    acq_df,
+    perf_df
+):
+
+    cols_to_merge = [
+        "account_id",
+        "booking_vintage",
+        "sourcing_channel",
+        "fico_band",
+        "credit_limit"
+    ]
+
+    merged_df = perf_df.merge(
+        acq_df[cols_to_merge],
+        on="account_id",
+        how="left"
+    )
+
+    return merged_df