code: function Client(options){
  	// Endpoint
  	this.endpoint = 'ecs.amazonaws.com';
  	this.path = '/onca/xml';
  	// Identifiers (required parameters)
  	this.awsAccessKeyId = options.awsAccessKeyId;
  	this.associateTag = options.associateTag;
  	this.service = 'AWSECommerceService';
  	// Secret key 
  	this.awsSecretKey = options.awsSecretKey;
  	// API version
  	this.version = '2011-08-01';
  }
docs: `Client` class
  @constructor
  
  @return {Client}
  @api private