diff --git a/build.gradle.kts b/build.gradle.kts
index a49109d31cf4..c52201eb05e7 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -118,6 +118,9 @@ tasks.rat {
     // JupyterLab extensions
     "sdks/python/apache_beam/runners/interactive/extensions/apache-beam-jupyterlab-sidepanel/yarn.lock",
 
+    // Autogenerated apitools clients.
+    "sdks/python/apache_beam/runners/dataflow/internal/clients/*/**/*.py",
+
     // Sample text file for Java quickstart
     "sdks/java/maven-archetypes/examples/sample.txt",
 
diff --git a/sdks/python/apache_beam/runners/dataflow/internal/clients/README.txt b/sdks/python/apache_beam/runners/dataflow/internal/clients/README.txt
new file mode 100644
index 000000000000..1d697caeee6a
--- /dev/null
+++ b/sdks/python/apache_beam/runners/dataflow/internal/clients/README.txt
@@ -0,0 +1,11 @@
+To regenerate these files run
+
+pip install google-apitools[cli]
+gen_client \
+    --discovery_url dataflow.v1b3 \
+    --overwrite \
+    --root_package=. \
+    --outdir=apache_beam/runners/dataflow/internal/clients/dataflow \
+    client
+
+Patch up the imports in __init__ to make them conditional.