public static @NotNull List<Object> getGroupActions(@NotNull String groupId, @NotNull CustomActionsSchema schema) {
    var group = getGroup(groupId, schema);
    if (group == null) {
      throw new IllegalStateException("ActionGroup[" + groupId + "] is not found");
    }
    return group.getChildren();
  }
public static @NotNull List<Object> getGroupActions(@NotNull String groupId, @NotNull CustomActionsSchema schema)