Fix typo in pydoc to explain the returned value is an Adapter, not an IterativeProcess.

PiperOrigin-RevId: 320255379

tensorflow_federated/python/research/optimization/shared/fed_avg_schedule.py

@@ -283,7 +283,7 @@ def build_fed_avg_process(model_fn,
       the total number of examples processed on device.
 
   Returns:
-    A `tff.templates.IterativeProcess`.
+    A `FederatedAveragingProcessAdapter`.
   """
 
   client_lr_schedule = client_lr

tensorflow_federated/python/research/optimization/shared/iterative_process_builder.py

@@ -62,7 +62,7 @@ def from_flags(input_spec,
       to the number of examples processed over all batches.
 
   Returns:
-    A `tff.templates.IterativeProcess` instance.
+    An `IterativeProcessPythonAdapter`.
   """
   # TODO(b/147808007): Assert that model_builder() returns an uncompiled keras
   # model.