code: function initPreprocessor(oPreprocessor, bAsync) {
  		var oPreprocessorImpl;
  
  		if (typeof oPreprocessor.preprocessor === "string") {
  			var sPreprocessorName = oPreprocessor.preprocessor.replace(/\./g, "/");
  			// module string given, resolve and retrieve object
  			if (bAsync) {
  				 return new Promise(function(resolve, reject) {
  					sap.ui.require([sPreprocessorName], function(oPreprocessorImpl) {
  						resolve(oPreprocessorImpl);
  					});
  				});
  			} else {
  				return sap.ui.requireSync(sPreprocessorName);
  			}
  		} else if (typeof oPreprocessor.preprocessor === "function" && !oPreprocessor.preprocessor.process) {
  			oPreprocessorImpl = {
  				process: oPreprocessor.preprocessor
  			};
  		} else {
  			oPreprocessorImpl = oPreprocessor.preprocessor;
  		}
  
  		if (bAsync) {
  			return Promise.resolve(oPreprocessorImpl);
  		} else {
  			return oPreprocessorImpl;
  		}
  	}
docs: resolves either the module dependency or the function which was passed to settings to the internal
  preprocessor config object
  
  @param {object} oPreprocessor Preprocessor config object
  @param {boolean} bAsync Whether processing is async or not
  @return {object} oPreprocessorImpl
  @private