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: unmarshaler.go
    path of file: ./repos/go-toml
    
    the code of the file until where you have to start completion: package toml

import (
	"encoding"
	"errors"
	"fmt"
	"io"
	"io/ioutil"
	"math"
	"reflect"
	"strings"
	"sync/atomic"
	"time"

	"github.com/pelletier/go-toml/v2/internal/danger"
	"github.com/pelletier/go-toml/v2/internal/tracker"
	"github.com/pelletier/go-toml/v2/unstable"
)

// Unmarshal deserializes a TOML document into a Go value.
//
// It is a shortcut for Decoder.Decode() with the default options.
func Unmarshal(data []byte, v interface{}) error {
	p := unstable.Parser{}
	p.Reset(data)
	d := decoder{p: &p}

	return d.FromParser(v)
}

// Decoder reads and de
    
func (d *decoder) unmarshalInlineTable(itable *unstable.Node, v reflect.Value) error {
	// Make sure v is an initialized object.
	switch v.Kind() {
	case reflect.Map:
		if v.IsNil() {
			v.Set(reflect.MakeMap(v.Type()))
		}
	case reflect.Struct:
	// structs are always initialized.
	case reflect.Interface:
		elem := v.Elem()
		if !elem.IsValid() {
			elem = makeMapStringInterface()
			v.Set(elem)
		}
		return d.unmarshalInlineTable(itable, elem)
	default:
		return unstable.NewParserError(d.p.Raw(itable.Raw), "cannot store inline table in Go type %s", v.Kind())
	}

	it := itable.Children()
	for it.Next() {
		n := it.Node()

		x, err := d.handleKeyValue(n, v)
		if err != nil {
			return err
		}
		if x.IsValid() {
			v = x
		}
	}

	return nil
}