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: memfs.go
    path of file: ./repos/sliver/client/command/wasm
    
    the code of the file until where you have to start completion: package wasm

import (
	"fmt"
	"os"
	"path/filepath"

	"github.com/bishopfox/sliver/client/console"
	"github.com/bishopfox/sliver/util"
	"github.com/spf13/cobra"
)

func parseMemFS(cmd *cobra.Command, con *console.SliverClient, args []string) (map[string][]byte, error) {
	memfs := make(map[string][]byte)

	totalSize := 0
	fileArg, _ := cmd.Flags().GetString("file")
	dirFlag, _ := cmd.Flags().GetString("dir")
	if fileArg != "" {
		files, err := filepath.Glob(fileArg)
		if err != nil {
			return nil, err
		}
		count := 0
		for _, file := range files {
			data, err := os.ReadFile(file)
			if err != nil {
				return nil, fmt.Errorf("(file) %s: %s", file, err)
			}
			con.PrintInfof("Adding '%s' to memfs (%d bytes)", file, len(data))
			memfs[filepath.Base(file)] = data
			count++
			totalSize += len(data)
		}
		if dirFlag == "" {
			con.PrintInfof("Added %d file(s) to memfs\n", count)
			return memfs, nil
		}
	}

	dirArg, _ := cmd.Flags().GetString
    
func parseMemFS(cmd *cobra.Command, con *console.SliverClient, args []string) (map[string][]byte, error) {
	memfs := make(map[string][]byte)

	totalSize := 0
	fileArg, _ := cmd.Flags().GetString("file")
	dirFlag, _ := cmd.Flags().GetString("dir")
	if fileArg != "" {
		files, err := filepath.Glob(fileArg)
		if err != nil {
			return nil, err
		}
		count := 0
		for _, file := range files {
			data, err := os.ReadFile(file)
			if err != nil {
				return nil, fmt.Errorf("(file) %s: %s", file, err)
			}
			con.PrintInfof("Adding '%s' to memfs (%d bytes)", file, len(data))
			memfs[filepath.Base(file)] = data
			count++
			totalSize += len(data)
		}
		if dirFlag == "" {
			con.PrintInfof("Added %d file(s) to memfs\n", count)
			return memfs, nil
		}
	}

	dirArg, _ := cmd.Flags().GetString("dir")
	dirCount := 0
	fileCount := 0
	if dirArg != "" {
		dirs, err := filepath.Glob(dirArg)
		if err != nil {
			return nil, err
		}
		for _, dir := range dirs {
			err = filepath.WalkDir(dir, func(walkingPath string, d os.DirEntry, err error) error {
				if err != nil {
					return err
				}
				if d.IsDir() {
					return nil
				}
				data, err := os.ReadFile(walkingPath)
				if err != nil {
					return fmt.Errorf("%s: %s", walkingPath, err)
				}
				con.PrintInfof("Adding '%s' to memfs (%d bytes)", walkingPath, len(data))
				memfs[filepath.Base(walkingPath)] = data
				fileCount++
				totalSize += len(data)
				return nil
			})
			if err != nil {
				return nil, fmt.Errorf("(dir) %s: %s", dir, err)
			}
			dirCount++
		}
	}
	con.PrintInfof("Added %d files from %d directories to memfs (%s)\n",
		fileCount, dirCount, util.ByteCountBinary(int64(totalSize)))
	return memfs, nil
}