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: fsconfig.go
    path of file: ./repos/sliver/vendor/github.com/tetratelabs/wazero
    
    the code of the file until where you have to start completion: package wazero

import (
	"io/fs"

	"github.com/tetratelabs/wazero/internal/fsapi"
	"github.com/tetratelabs/wazero/internal/sys"
	"github.com/tetratelabs/wazero/internal/sysfs"
)

// FSConfig configures filesystem paths the embe
    
func (c *fsConfig) clone() *fsConfig {
	ret := *c // copy except slice and maps which share a ref
	ret.fs = make([]fsapi.FS, 0, len(c.fs))
	ret.fs = append(ret.fs, c.fs...)
	ret.guestPaths = make([]string, 0, len(c.guestPaths))
	ret.guestPaths = append(ret.guestPaths, c.guestPaths...)
	ret.guestPathToFS = make(map[string]int, len(c.guestPathToFS))
	for key, value := range c.guestPathToFS {
		ret.guestPathToFS[key] = value
	}
	return &ret
}