You're seeing just the function dumpers, go back to Ecto.Adapters.DynamoDB module for more information.

Returns the dumpers for a given type.

We rely on ExAws encoding functionality during insertion and update to properly format types for DynamoDB. Please see ExAws ExAws.Dynamo.update_item and ExAws.Dynamo.put_item for specifics. Currently, we only modify :utc_datetime and :naive_datetime, appending the UTC offset, "Z", to the datetime string before passing to ExAws.