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: conversion.go
    path of file: ./repos/kubeedge/vendor/k8s.io/kubernetes/pkg/apis/discovery/v1beta1
    
    the code of the file until where you have to start completion: /*
Copyright 2021 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package v1beta1

import (
	corev1 "k8s.io/api/core/v
    
func Convert_discovery_Endpoint_To_v1beta1_Endpoint(in *discovery.Endpoint, out *v1beta1.Endpoint, s conversion.Scope) error {
	if err := autoConvert_discovery_Endpoint_To_v1beta1_Endpoint(in, out, s); err != nil {
		return err
	}

	// If no deprecated topology, zone or node field, no conversion is necessary
	if in.DeprecatedTopology == nil && in.Zone == nil && in.NodeName == nil {
		return nil
	}

	// Copy	Deprecated Topology into Topology
	out.Topology = make(map[string]string, len(in.DeprecatedTopology))
	for k, v := range in.DeprecatedTopology {
		out.Topology[k] = v
	}

	// Add zone field into the topology map
	if in.Zone != nil {
		out.Topology[corev1.LabelTopologyZone] = *in.Zone
	}

	// Add hostname into the topology map ONLY IF it is not already present.
	// This preserves the (rather odd) ability to have different values for
	// topology[hostname] and nodename in v1beta1.
	if in.NodeName != nil && out.Topology[corev1.LabelHostname] == "" {
		out.Topology[corev1.LabelHostname] = *in.NodeName
	}

	return nil
}