postTranslationTexts(mPropertyBag) {
			return _getWriteConnectors()
			.then(_executeActionByName.bind(undefined, "translation.postTranslationTexts", mPropertyBag));
		}
Uploads an XLIFF file.

@param {object} mPropertyBag - Property bag
@param {sap.ui.fl.Layer} mPropertyBag.layer - Layer
@param {object} mPropertyBag.payload - The file to be uploaded
@returns {Promise} Resolves after the file was uploaded;
rejects if an error occurs or the parameter is missing