pub static VOLUME_IDENTIFIER_KIND_CLASS: Lazy<&'static str>
The string used to obtain the volume class with
Known volume classes include
classes may be added in the future.
This is intended to be used by applications to classify
instances into different sections - for example a file manager or
file chooser can use this information to show
network volumes under
a “Network” heading and
device volumes under a “Devices” heading.