Support retry configuration

**Feature request**
It would be great to have retry for lib.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_retry` with default `false`.

Start by locating the configuration handling and the library call sites that would need retry behavior; no specific files or tests are named in the issue. Determine the expected retry policy and how configuration is tested, then verify that enable_retry defaults to false and that the requested retry behavior works when enabled.

Written by the indexing model from the issue text.