Describe the feature

Some plugins may want to provide additional (optional) features if another plugin is available. For example, a plugin that affects the connection may also perform additional actions on the connection.ethers or connection.viem objects if the corresponding plugins are installed. If either plugin is not installed, then it should not cause an error.

an example of plugin that would use that feature can be found here: https://github.com/Amxx/hardhat-predeploy/tree/optional-dependencies

The context is outlined in [Public] Conditional plugins