boolean (@NotNull final MultiMap<PyClass, PyMemberInfo<?>> duplicatesConflict, @NotNull final Collection<PyMemberInfo<?>> dependenciesConflicts) { Preconditions .checkArgument(!(duplicatesConflict.isEmpty() && dependenciesConflicts.isEmpty()), "Can't show dialog for empty conflicts"); final DialogWrapper conflictsDialog = new MembersConflictDialog(myProject, duplicatesConflict, dependenciesConflicts); return conflictsDialog.showAndGet(); }