# File lib/fog/aws/models/compute/network_acl.rb, line 112
        def update_rule(rule_number, protocol, rule_action, cidr_block, egress, options = {})
          requires :network_acl_id

          service.replace_network_acl_entry(network_acl_id, rule_number, protocol, rule_action, cidr_block, egress, options)
          true
        end