code: function resolveSorters(o, sProp) {
  			var v = o[sProp];
  
  			if ( Array.isArray(v) ) {
  				v.forEach(function(oObject, iIndex) {
  					resolveSorters(v, iIndex);
  				});
  				return;
  			}
  
  			if ( v && typeof v === 'object' ) {
  				resolveRef(v, "group");
  				resolveRef(v, "comparator");
  				o[sProp] = new Sorter(v);
  			}
  		}
docs: /*
  Converts sorter definitions to sap.ui.model.Sorter instances.
  
  The value of the given property can either be a single sorter definition object
  which then will be fed into the constructor of sap.ui.model.Sorter, or it can
  be an array of such objects.
  
  Properties 'group' and 'comparator' in any of the sorter definitions
  will be resolved as functions in the given context (oEnv).