lib/Ext/data/proxy/Server.js
function(sorters) {
        var min = [],
            length = sorters.length,
            i = 0;

        for (; i < length; i++) {
            min[i] = {
                property : sorters[i].getProperty(),
                direction: sorters[i].getDirection()
            };
        }
        return this.applyEncoding(min);

    }
function(sorters) {
        var min = [],
            length = sorters.length,
            i = 0;

        for (; i < length; i++) {
            min[i] = {
                property : sorters[i].getProperty(),
                direction: sorters[i].getDirection()
            };
        }
        return this.applyEncoding(min);

    }
Encodes the array of {@link Ext.util.Sorter} objects into a string to be sent in the request url. By default,
this simply JSON-encodes the sorter data
@param {Ext.util.Sorter[]} sorters The array of {@link Ext.util.Sorter Sorter} objects
@return {String} The encoded sorters