docs: @Nonnull
  	public <V extends T> LObjIntConsumerBuilder<T> aCase(Class<V> argC1, LObjIntConsumer<V> function) {
  		PartialCase.The pc = partialCaseFactoryMethod((a1, a2) -> (argC1 == null || argC1.isInstance(a1)));
  
  		pc.evaluate(function);
  		return self();
  	}