// allows for virtual overlays on top of the files on disk.
package fsys

import (
	"encoding/json"
	"errors"
	"fmt"
	"internal/godebug"
	"io"
	"io/fs"
	"log"
	"os"
	pathpkg "path"
	"path/filepath"
	"runtime"
	"runtime/debug"
	"sort"
	"strings"
	"sync"
	"time"
)

// Trace emits a trace event for the operation and file path to the trace log,