import ping3


def ping(host: str) -> int:
	"""
	Pings the given host and returns the time the ping took ins ms or -1 if the ping was not successful
	:param host:
	:return:
	"""
	NUMBER_OF_ATTEMPTS = 5

	for iteration in range(NUMBER_OF_ATTEMPTS):
		res = ping3.ping(dest_addr=host, unit='ms')

		if res:
			return int(res)

	return -1