MakeInjector creates an [InjectableFactory] based on a set of [Provider]s The resulting [InjectableFactory] can then be used to retrieve service instances given their [Dependency].

MakeProviderFactory constructs a [ProviderFactory] based on a set of [Dependency]s and a function that accepts the resolved dependencies to return a result.

required dependency.

lazy and required.

lazy and optional.

item of a multi token.

array of implementations.

optional dependency.

Empty is the empty array of providers.

Dependency describes the relationship to a service.