
Users may be interested in subclassing them, and they should not intermix different implementations, so let's provide them with implementation agnostic classes. Change-Id: I63ecd5dbbf78089d9e5c43ca5895c748eb23f070
Users may be interested in subclassing them, and they should not intermix different implementations, so let's provide them with implementation agnostic classes. Change-Id: I63ecd5dbbf78089d9e5c43ca5895c748eb23f070