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: alias.go
    path of file: ./repos/kubeedge/vendor/sigs.k8s.io/kustomize/kyaml/yaml
    
    the code of the file until where you have to start completion: // Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0

package yaml

import (
	"bytes"
	"io"

	"sigs.k8s.io/kustomize/kyaml/internal/forked/githu
    
func MarshalWithOptions(in interface{}, opts *EncoderOptions) ([]byte, error) {
	var buf bytes.Buffer
	err := NewEncoderWithOptions(&buf, opts).Encode(in)
	if err != nil {
		return nil, err
	}
	return buf.Bytes(), nil
}