fun subcomponent(qualifier: Any, override: Boolean = false, deriveExisting: Boolean = false, block: Component.Builder.() -> Unit): Unit
Register a subcomponent.
qualifier - The qualifier of the subcomponent.
override - If true an existing subcomponent will be replaced.
deriveExisting - If true an existing subcomponent will be derived and replaced with
the derived version.
block - A builder block to register provider on the subcomponent.