index.js
function listCampaigns(callback,limit,offset){
    var data={}
    if (limit === undefined) {
        limit = null;
    } else {
        data['limit'] = limit;
    }
    if (offset === undefined) {
        offset = null;
    } else {
        data['offset'] = offset;
    }
    sendRequest('campaigns', 'GET', data, true, callback);
}
function listCampaigns(callback,limit,offset){
    var data={}
    if (limit === undefined) {
        limit = null;
    } else {
        data['limit'] = limit;
    }
    if (offset === undefined) {
        offset = null;
    } else {
        data['offset'] = offset;
    }
    sendRequest('campaigns', 'GET', data, true, callback);
}
Get list of campaigns

@param callback
@param limit
@param offset