code: def find_category(self, parent_alias, title):
          
          found = None
          child_ids = self.get_child_ids(parent_alias)
          for cid in child_ids:
              category = self.get_category_by_id(cid)
              if category.title.lower() == title.lower():
                  found = category
                  break
          return found
docs: Searches parent category children for the given title (case independent).
  
          :param str parent_alias:
          :param str title:
          :rtype: Category|None
          :return: None if not found; otherwise - found Category