** Passed into the 'AppModule.bind()' method. Allows a module to bind service mixins to service implementations. ** Example: ** ** pre>** class AppModule {** ** static Void bind(ServiceBinder binder) {** binder.bind(MyService#, MyServiceImpl#)** } ** }** <pre** This is an adaptation of ideas from [Guice]`http://code.google.com/p/google-guice/`.** mixin ServiceBinder {** Binds the service mixin to a service impl class. The default service id is the unqualified name of the service mixin. abstract ServiceBindingOptions bind(Type serviceMixin, Type serviceImpl)** Defines a concrete implementation of a service. If 'implClass' is a mixin in terms of an impl class, without a service mixin.abstract ServiceBindingOptions bindImpl(Type implClass)}