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: setfrom.go
    path of file: ./repos/rclone/backend/s3
    
    the code of the file until where you have to start completion: // Code generated by "go run gen_setfrom.go"; DO NOT EDIT.

package s3

import "github.com/aws/aws-sdk-go/service/s3"

// setFrom_s3ListObjectsInput_s3ListObjectsV2Input copies matching elements from a to b
func setFrom_s3ListObjectsInput_s3ListObjectsV2Input(a *s3.ListObjectsInput, b *s3.ListObjectsV2Input) {
	a.Bucket = b.Bucket
	a.Delimiter = b.Delimiter
	a.EncodingType = b.EncodingType
	a.ExpectedBucketOwner = b.ExpectedBucketOwner
	a.MaxKeys = b.MaxKeys
	a.Opti
    
func setFrom_s3CreateMultipartUploadInput_s3HeadObjectOutput(a *s3.CreateMultipartUploadInput, b *s3.HeadObjectOutput) {
	a.BucketKeyEnabled = b.BucketKeyEnabled
	a.CacheControl = b.CacheControl
	a.ContentDisposition = b.ContentDisposition
	a.ContentEncoding = b.ContentEncoding
	a.ContentLanguage = b.ContentLanguage
	a.ContentType = b.ContentType
	a.Metadata = b.Metadata
	a.ObjectLockLegalHoldStatus = b.ObjectLockLegalHoldStatus
	a.ObjectLockMode = b.ObjectLockMode
	a.ObjectLockRetainUntilDate = b.ObjectLockRetainUntilDate
	a.SSECustomerAlgorithm = b.SSECustomerAlgorithm
	a.SSECustomerKeyMD5 = b.SSECustomerKeyMD5
	a.SSEKMSKeyId = b.SSEKMSKeyId
	a.ServerSideEncryption = b.ServerSideEncryption
	a.StorageClass = b.StorageClass
	a.WebsiteRedirectLocation = b.WebsiteRedirectLocation
}