Optionalproperties: Partial<{}>Frees a parse context previously allocated with gst_parse_context_new().
Retrieve missing elements from a previous run of gst_parse_launch_full()
or gst_parse_launchv_full(). Will only return results if an error code
of Gst.ParseError.NO_SUCH_ELEMENT was returned.
a null-terminated array of element factory name strings of missing elements. Free with g_strfreev() when no longer needed.
Staticnew
Opaque structure.