code: def post_request(self, container, resource=None, params=None, accept=None):
          
          url = self.make_url(container, resource)
          headers = self._make_headers(accept)
  
          try:
              rsp = requests.post(url, data=params, headers=headers,
                                  verify=self._verify, timeout=self._timeout)
          except requests.exceptions.ConnectionError as e:
              RestHttp._raise_conn_error(e)
  
          if self._dbg_print:
              self.__print_req('POST', rsp.url, headers, params)
  
          return self._handle_response(rsp)
docs: Send a POST request.