code: function(module_id, fields) {
  		return request({
  			hostname: hosts.wotb,
  			path: '/wotb/encyclopedia/modules/'
  		}, {
  			module_id: module_id ? module_id.toString() : '',
  			fields: fields ? fields.toString() : ''
  		});
  	}
docs: Information on any engine, suspension, gun, or turret.
  
  @params {number|number[]} [module_id] id of any vehicle's module
  @params {string|string[]} [fields] response selection
  @returns {Promise<Object>} resolves to description of each module