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: interfacer.go
    path of file: ./repos/goreporter/linters/interfacer
    
    the code of the file until where you have to start completion: package interfacer

import (
	"log"
	"os"
	"path/filepath"
	"strings"
)

func Interfacer(packagesPath map[string]string) []string {
	packages := make([]string, 0)
	for _, v := range packagesPath {
		v = absPath(v)
		srcIndex := strings.Index(v, "src")
		if srcIndex >= 0 && (srcIndex+4) < len(v) {
			packages = appe
    
func Interfacer(packagesPath map[string]string) []string {
	packages := make([]string, 0)
	for _, v := range packagesPath {
		v = absPath(v)
		srcIndex := strings.Index(v, "src")
		if srcIndex >= 0 && (srcIndex+4) < len(v) {
			packages = append(packages, v[(srcIndex+4):])
		}
	}
	lines, err := CheckArgs(packages)
	if err != nil {
		l := log.New(os.Stderr, "", log.LstdFlags)
		l.Println(err)
	}
	return lines
}