/**
* @global
* @typedef {function(Error?, any=):void} cbType
*
*/
/**
* @global
* @typedef {Object.<string, Object>} ctxType
*/
/**
* @global
* @typedef {Object} orderType
* @property {string} id An identifier for the order.
* @property {string} tid A transaction id for a captured order.
* @property {string} user The requesting user.
* @property {number} units Number of units requested.
* @property {number} value Total cost in dollars.
*/