# Functions
Clean is a wrapper for filepath.Clean.
GetTestFS creates and returns a FS instance to be used in tests.
IsExist returns a boolean value indicating whether the specified error is to indicate that a file or directory already exists.
IsNotExist returns a boolean value indicating whether the specified error is to indicate that a file or directory does not exist.
NewMemFS returns a new memory based FS implementation that can be used in tests.
NewPebbleFS creates a new pebble/vfs.FS instance.
ReportLeakedFD reports leaked file fds.
TempDir returns the directory use for storing temporary files.
# Variables
Default is the default vfs suppose to be used in production.
DefaultPebbleFS is the default vfs for pebble suppose to be used in production.