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: symbol_table.go
    path of file: ./repos/pyroscope/ebpf/symtab/elf
    
    the code of the file until where you have to start completion: package elf

import (
	"debug/elf"
	"errors"
	"fmt"
	"sort"

	"github.com/grafana/pyroscope/ebpf/symtab/gosym"
	"github.com/ianlancetaylor/demangle"
)

// symbols from .symtab, .dynsym

type SymbolIndex struct {
	Name  Name
	Value uint64
}

type SectionLinkIndex uint8

var sectionTypeSym SectionLinkInde
    
func (st *SymbolTable) symbolName(idx int) (string, error) {
	linkIndex := st.Index.Names[idx].LinkIndex()
	SectionHeaderLink := &st.Index.Links[linkIndex]
	NameIndex := st.Index.Names[idx].NameIndex()
	s, b := st.File.getString(int(NameIndex)+int(SectionHeaderLink.Offset), st.demangleOptions)
	if !b {
		return "", fmt.Errorf("elf getString")
	}
	return s, nil
}