Trainer client bump and deprecation msg

GitOrigin-RevId: 3f9d6f91f108bd1c7c2360c5259570854f6704ef

requirements.txt

@@ -1,6 +1,6 @@
 boto3~=1.20
 dask[dataframe]==2023.5.1
-gretel-client>=0.17.5
+gretel-client>=0.17.7
 jinja2~=3.1
 networkx~=3.0
 numpy~=1.20

src/gretel_trainer/relational/__init__.py

@@ -1,3 +1,5 @@
+import logging
+
 import gretel_trainer.relational.log
 
 from gretel_trainer.relational.connectors import (
@@ -12,3 +14,11 @@
 from gretel_trainer.relational.extractor import ExtractorConfig
 from gretel_trainer.relational.log import set_log_level
 from gretel_trainer.relational.multi_table import MultiTable
+
+logger = logging.getLogger(__name__)
+
+logger.warn(
+    "Relational Trainer is deprecated, and will be removed in the next Trainer release. "
+    "To transform and synthesize relational data, use Gretel Workflows. "
+    "Visit the docs to learn more: https://docs.gretel.ai/create-synthetic-data/workflows-and-connectors"
+)