A Factory implementation used to implement Map bindings. This factory returns a Map<K, Provider<V>> when calling get (as specified by Factory).
Map<K, Provider<V>>
A builder for MapProviderFactory.
The map of Providers that contribute to this map binding.
Returns a Map<K, Provider<V>> whose iteration order is that of the elements given by each of the providers, which are invoked in the order given at creation.