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: message.pb.go
    path of file: ./repos/temporal/api/checksum/v1
    
    the code of the file until where you have to start completion: // The MIT License
//
// Copyright (c) 2019 Temporal Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obt
    
func file_temporal_server_api_checksum_v1_message_proto_init() {
	if File_temporal_server_api_checksum_v1_message_proto != nil {
		return
	}
	if !protoimpl.UnsafeEnabled {
		file_temporal_server_api_checksum_v1_message_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
			switch v := v.(*MutableStateChecksumPayload); i {
			case 0:
				return &v.state
			case 1:
				return &v.sizeCache
			case 2:
				return &v.unknownFields
			default:
				return nil
			}
		}
	}
	type x struct{}
	out := protoimpl.TypeBuilder{
		File: protoimpl.DescBuilder{
			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
			RawDescriptor: file_temporal_server_api_checksum_v1_message_proto_rawDesc,
			NumEnums:      0,
			NumMessages:   1,
			NumExtensions: 0,
			NumServices:   0,
		},
		GoTypes:           file_temporal_server_api_checksum_v1_message_proto_goTypes,
		DependencyIndexes: file_temporal_server_api_checksum_v1_message_proto_depIdxs,
		MessageInfos:      file_temporal_server_api_checksum_v1_message_proto_msgTypes,
	}.Build()
	File_temporal_server_api_checksum_v1_message_proto = out.File
	file_temporal_server_api_checksum_v1_message_proto_rawDesc = nil
	file_temporal_server_api_checksum_v1_message_proto_goTypes = nil
	file_temporal_server_api_checksum_v1_message_proto_depIdxs = nil
}