async setSeenFeatureIds(mPropertyBag) {
			const mPayload = {
				seenFeatureIds: mPropertyBag.seenFeatureIds
			};
			const mParameters = {};
			InitialConnector._addClientInfo(mParameters);
			const sUrl = InitialUtils.getUrl(ROUTES.SEEN_FEATURES, mPropertyBag, mParameters);
			const sTokenUrl = InitialUtils.getUrl(ROUTES.TOKEN, mPropertyBag);
			const oRequestOptions = WriteUtils.getRequestOptions(
				InitialConnector,
				sTokenUrl,
				mPayload,
				"application/json; charset=utf-8",
				"json"
			);
			const oResult = await WriteUtils.sendRequest(sUrl, "PUT", oRequestOptions);
			return oResult.response?.seenFeatureIds;
		}
Writes the seen feature ids into the LRep backend.

@param {object} mPropertyBag Property bag
@param {string} mPropertyBag.seenFeatureIds List of feature ids that have been seen
@returns {Promise<string[]>} Promise resolves with an array of the seen feature ids