Advances iter and retrieves the next attribute/value. false is returned if
an error has occurred (in which case error is set), or if the end of the
iteration is reached (in which case attribute and value are set to null
and the iterator becomes invalid). If true is returned,
glib.uri_params_iter.UriParamsIter.next may be called again to receive another
attribute/value pair.
Note that the same attribute may be returned multiple times, since URIs
allow repeated attributes.
Advances iter and retrieves the next attribute/value. false is returned if an error has occurred (in which case error is set), or if the end of the iteration is reached (in which case attribute and value are set to null and the iterator becomes invalid). If true is returned, glib.uri_params_iter.UriParamsIter.next may be called again to receive another attribute/value pair.
Note that the same attribute may be returned multiple times, since URIs allow repeated attributes.