isDefinite
Determines if the given @type is definite (ie: not indefinite).
A type is definite if its type string does not contain any indefinite type characters ('*', '?', or 'r').
A #GVariant instance may not have an indefinite type, so calling this function on the result of g_variant_get_type() will always result in true being returned. Calling this function on an indefinite type like %G_VARIANT_TYPE_ARRAY, however, will result in false being returned.
Return
true if @type is definite
Since 2.24