Support caching configuration

**Feature request**
It would be great to have analytics for models.

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

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

Start by locating the project's configuration handling and any existing model or analytics entry points; the issue names no files or tests. Confirm the intended analytics behavior and where the new enable_analytics option belongs, then verify that its default is false and that the production use case is covered.

Written by the indexing model from the issue text.