A Feature should define a configuration as a default export

[ethernian]

A Feature has only one goal: return a configuration to the Adapter. We don't need the Feature to be class for that: it is enough to implement it as a module with the configuration object as a default export. Dependencies should be provided as module parameters.

Old code:
https://github.com/dapplets/typescript-examples/blob/9cf90f21d642788b7be7fab84cebe38e950860a2/src/TwitterFeature/index.ts#L104-L110

New Code (pseudocode)

export default FeatureConfigurationType(
    @inject("Twitter.adapter.eth","v1.1.3") adaper: TwitterAdapter, 
    core: ICore) {
... //feature configuration
}