string so it can appear in a D-Bus address as the value
part of a key-value pair.
For instance, if
this function would return
which could be used in a D-Bus address like
Available since: 2.36
An unescaped string to be included in a D-Bus address as the value in a key-value pair.
The data is owned by the caller of the function. The value is a NUL terminated UTF-8 string.