code: def delete_category(category_id):
      
      try:
          res = _pybossa_req('delete', 'category', category_id)
          if type(res).__name__ == 'bool':
              return True
          else:
              return res
      except:  # pragma: no cover
          raise
docs: Delete a Category with id = category_id.
  
      :param category_id: PYBOSSA Category ID
      :type category_id: integer
      :returns: True -- the response status code