code: def get_ecf_props(ep_id, ep_id_ns, rsvc_id=None, ep_ts=None):
      
      results = {}
      if not ep_id:
          raise ArgumentError("ep_id", "ep_id must be a valid endpoint id")
      results[ECF_ENDPOINT_ID] = ep_id
      if not ep_id_ns:
          raise ArgumentError("ep_id_ns", "ep_id_ns must be a valid namespace")
      results[ECF_ENDPOINT_CONTAINERID_NAMESPACE] = ep_id_ns
      if not rsvc_id:
          rsvc_id = get_next_rsid()
      results[ECF_RSVC_ID] = rsvc_id
      if not ep_ts:
          ep_ts = time_since_epoch()
      results[ECF_ENDPOINT_TIMESTAMP] = ep_ts
      return results
docs: Prepares the ECF properties
  
      :param ep_id: Endpoint ID
      :param ep_id_ns: Namespace of the Endpoint ID
      :param rsvc_id: Remote service ID
      :param ep_ts: Timestamp of the endpoint
      :return: A dictionary of ECF properties