Gst.Element.prototype.link_pads

function link_pads(srcpadname:String, dest:Gst.Element, destpadname:String):Boolean {
    // Gjs wrapper for gst_element_link_pads()
}

Links the two named pads of the source and destination elements. Side effect is that if one of the pads has no parent, it becomes a child of the parent of the other element. If they have different parents, the link fails.