@NotNull
  DiffRequest process(@NotNull ChangeDiffRequestProducer presentable,
                      @NotNull UserDataHolder context,
                      @NotNull ProgressIndicator indicator) throws ProcessCanceledException, DiffRequestProducerException;
@NotNull
  DiffRequest process(@NotNull ChangeDiffRequestProducer presentable,
                      @NotNull UserDataHolder context,
                      @NotNull ProgressIndicator indicator)