Creates a D-Bus type signature
GVariant with the contents of
string must be a valid D-Bus type signature. Use
g_variant_is_signature() if you’re not sure.
A normal C nul-terminated string.
|The data is owned by the caller of the function.|
|The string is a NUL terminated UTF-8 string.|
A floating reference to a new signature
|The data is owned by the called function.|