filter method of sap.ui.model.binding

hello everyone,i hava a problem when i write follow code;

var oList=this.getVIew().byId("list");
var oBinding=oList.getBinding("items");
oBinding.filter(aFilters);

i hava searched API for  "sap.m.List", and found method "getBinding",the method return "sap.ui.mode.Binding";

then i searched API for sap.ui.model.Binding, but i cant not find the method of filter,does anyone know something about it?