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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_all_load_balancers(self, load_balancer_names=None):
 """ Retrieve all load balancers associated with your account. :type load_balancer_names: list :keyword load_balancer_names: An optional list of load balancer names. :rtype: :py:class:`boto.resultset.ResultSet` :return: A ResultSet containing instances of :class:`boto.ec2.elb.loadbalancer.LoadBalancer` """

        params = {}
        if load_balancer_names:
            self.build_list_params(params, load_balancer_names,
                                   'LoadBalancerNames.member.%d')
        return self.get_list('DescribeLoadBalancers', params,
                             [('member', LoadBalancer)])