# FLOAT for single-precision float types (gfloat)
# DOUBLE for double-precision float types (gdouble)
# STRING for string types (gchar*)
+# PARAM for GParamSpec or derived types (GParamSpec*)
# BOXED for boxed (anonymous but reference counted) types (GBoxed*)
# POINTER for anonymous pointer types (gpointer)
# OBJECT for GObject or derived types (GObject*)
# BOOL deprecated alias for BOOLEAN
VOID:VOID
+VOID:INT,INT
VOID:INT,INT,INT,INT
VOID:POINTER