You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: partition.go
    path of file: ./repos/ko/vendor/github.com/aws/aws-sdk-go-v2/internal/endpoints/awsrulesfn
    
    the code of the file until where you have to start completion: package awsrulesfn

import "regexp"

// Partition provides the metadata describing an AWS partition.
type Partition struct {
	ID            string                     `json:"id"`
	Regions       map[string]RegionOverrides `json:"regions"
    
func mergeOverrides(into PartitionConfig, from RegionOverrides) PartitionConfig {
	if from.Name != nil {
		into.Name = *from.Name
	}
	if from.DnsSuffix != nil {
		into.DnsSuffix = *from.DnsSuffix
	}
	if from.DualStackDnsSuffix != nil {
		into.DualStackDnsSuffix = *from.DualStackDnsSuffix
	}
	if from.SupportsFIPS != nil {
		into.SupportsFIPS = *from.SupportsFIPS
	}
	if from.SupportsDualStack != nil {
		into.SupportsDualStack = *from.SupportsDualStack
	}
	return into
}