code: @Nonnull
  	public <V1 extends T1, V2 extends T2> LBiObjDblConsumerBuilder<T1, T2> casesOf(Class<V1> argC1, Class<V2> argC2, Consumer<LBiObjDblConsumerBuilder<V1, V2>> pcpConsumer) {
  		PartialCase.The pc = partialCaseFactoryMethod((a1, a2, a3) -> (argC1 == null || argC1.isInstance(a1)) && (argC2 == null || argC2.isInstance(a2)));
  
  		pc.specifySubCases((Consumer) pcpConsumer);
  		return self();
  	}
docs: Allows to specify additional cases for a specific type of generic arguments (matched by instanceOf). Null classes can be provided in case of arguments that do not matter.