func (c *RDS) AddTagsToResource(input *AddTagsToResourceInput) (*AddTagsToResourceOutput, error) {
	req, out := c.AddTagsToResourceRequest(input)
	err := req.Send()
	return out, err
}
Adds metadata tags to an Amazon RDS resource. These tags can also be used
with cost allocation reporting to track cost associated with Amazon RDS resources,
or used in a Condition statement in an IAM policy for Amazon RDS.

For an overview on tagging Amazon RDS resources, see Tagging Amazon RDS
Resources (http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.Tagging.html).
package rds
import (
	"time"
	"github.com/aws/aws-sdk-go/aws/awsutil"
	"github.com/aws/aws-sdk-go/aws/request"
)
const opAddSourceIdentifierToSubscription = "AddSourceIdentifierToSubscription"
func (c *RDS) AddSourceIdentifierToSubscriptionRequest(input *AddSourceIdentifierToSubscriptionInput) (req *request.Request, output *AddSourceIdentifierToSubscriptionOutput) {
	op := &request.Operation{
		Name:       opAddSourceIdentifierToSubscription,
		HTTPMethod: "POST",
		HTTPPath:   "/",
	}
	if input == nil {
		input = &AddSourceIdentifierToSubscriptionInput{}
	}
	req = c.newRequest(op, input, output)
	output = &AddSourceIdentifierToSubscriptionOutput{}
	req.Data = output
	return
}
func (c *RDS) AddSourceIdentifierToSubscription(input *AddSourceIdentifierToSubscriptionInput) (*AddSourceIdentifierToSubscriptionOutput, error) {
	req, out := c.AddSourceIdentifierToSubscriptionRequest(input)
	err := req.Send()
	return out, err
}
const opAddTagsToResource = "AddTagsToResource"
func (c *RDS) AddTagsToResourceRequest(input *AddTagsToResourceInput) (req *request.Request, output *AddTagsToResourceOutput) {
	op := &request.Operation{
		Name:       opAddTagsToResource,
		HTTPMethod: "POST",
		HTTPPath:   "/",
	}
	if input == nil {
		input = &AddTagsToResourceInput{}
	}
	req = c.newRequest(op, input, output)
	output = &AddTagsToResourceOutput{}
	req.Data = output
	return
}