code: public static <T> T component(Class<T> component) {
  		Preconditions.checkState(container != null, 
  				"Cannot assemble component until Jaguar starts");
  		return container.component(component);
  	}
docs: Returns assembled component instance of the specified component type.
  This method must be invoked after Jaguar started.
  
  @param <T> The component type.
  @param component The component type.
  @return The component instance of the specified component type.