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: struct.pb.go
    path of file: ./repos/protobuf/ptypes/struct
    
    the code of the file until where you have to start completion: // Code generated by protoc-gen-go. DO NOT EDIT.
// source: github.com/golang/protobuf/ptypes/struct/struct.proto

package structpb

import (
	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
	structpb "google.golang.org/protobuf/types/known/structpb"
	reflect "reflect"
)

// Symbols defined in public import of google/protobuf/struct.proto.

type NullValue = structpb.NullValue

const NullValue_NULL_VALUE = structpb.NullValue_NULL_VALUE

var NullValue_name = structpb.NullVa
    
func file_github_com_golang_protobuf_ptypes_struct_struct_proto_init() {
	if File_github_com_golang_protobuf_ptypes_struct_struct_proto != nil {
		return
	}
	type x struct{}
	out := protoimpl.TypeBuilder{
		File: protoimpl.DescBuilder{
			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
			RawDescriptor: file_github_com_golang_protobuf_ptypes_struct_struct_proto_rawDesc,
			NumEnums:      0,
			NumMessages:   0,
			NumExtensions: 0,
			NumServices:   0,
		},
		GoTypes:           file_github_com_golang_protobuf_ptypes_struct_struct_proto_goTypes,
		DependencyIndexes: file_github_com_golang_protobuf_ptypes_struct_struct_proto_depIdxs,
	}.Build()
	File_github_com_golang_protobuf_ptypes_struct_struct_proto = out.File
	file_github_com_golang_protobuf_ptypes_struct_struct_proto_rawDesc = nil
	file_github_com_golang_protobuf_ptypes_struct_struct_proto_goTypes = nil
	file_github_com_golang_protobuf_ptypes_struct_struct_proto_depIdxs = nil
}