An annotation that can be used on a test field to contribute the value into the 
SingletonComponent as an 
ElementsIntoSet for the given type. Example usage:
 
 public class FooTest{
   ...
    @BindElementsIntoSet Set bindedSet = ImmutableSet.of("bar", "baz");
   ...
 }
 
 Here, bindedSet will be accessible to the entire application for your test. This is functionally
 equivalent to installing the following module in your test:
 
  @Module
  @InstallIn
 interface MyModule {
   @Provides
   @ElementsIntoSet
  Set bindSet() {
    return ImmutableSet.of("bar", "baz");
  }
 }
 
 Also see 
BindValueIntoSet, where you can gather individual elements into one set and bind
 it to the application.