Creates a new empty #SoupMultipart with a randomly-generated boundary string. Note that @mime_type must be the full MIME type, including "multipart/".
the MIME type of the multipart to create.
a new empty #SoupMultipart of the given @mime_type
ConstructionException GTK+ fails to create the object.
2.26
See Implementation
Creates a new empty #SoupMultipart with a randomly-generated boundary string. Note that @mime_type must be the full MIME type, including "multipart/".