suds.py

		api = get_carrier('fedex', self.config)
		#load Client and wsdl file:
		# >>> api.client
		# *** AttributeError: 'Fedex' object has no attribute 'client'
		response = api.get_rates('78701', '78701', 2, 'GROUND')
		# >>> api.client
		# <suds.client.Client object at 0x10b6783d0>
		# api.client is cloned each time when api.get_rates is called so it is thread safe
		# and wsdl file is loaded only once.

		if type_ == 'sync':
			start = time.time()
			for x in range(HOW_MANY):
				response = api.get_rates('78701', '78701', 2, 'GROUND')
			end = time.time()
		elif type_ == 'single':

			start = time.time()
			response = api.get_rates('78701', '78701', 2, 'GROUND')
			end = time.time()
		else:
			threads = []
			start = time.time()
			for x in range(HOW_MANY):
				t = Thread(api)
				t.start()
				threads.append(t)

			for t in threads:
				t.join()

			end = time.time()

		a_time = end - start