firewall_rules.go
func (c *Client) CreateFirewallRule(ruleOptions *FirewallRuleOptions) (*FirewallRule, error) {
	rule := new(FirewallRule)
	_, err := c.MakeApiRequest("POST", "/1.0/firewall_rules", ruleOptions, &rule)
	if err != nil {
		return nil, err
	}
	return rule, nil
}
func (c *Client) CreateFirewallRule(ruleOptions *FirewallRuleOptions) (*FirewallRule, error) {
	rule := new(FirewallRule)
	_, err := c.MakeApiRequest("POST", "/1.0/firewall_rules", ruleOptions, &rule)
	if err != nil {
		return nil, err
	}
	return rule, nil
}
// CreateFirewallRule creates a new firewall rule.
//
// It takes a FirewallRuleOptions struct for specifying name and other
// attributes. Not all attributes can be specified at create time
// (such as Id, which is allocated for you)