Gtk.TextBuffer.prototype.remove_tag

function remove_tag(tag:Gtk.TextTag, start:Gtk.TextIter, end:Gtk.TextIter):void {
    // Gjs wrapper for gtk_text_buffer_remove_tag()
}

Emits the "remove-tag" signal. The default handler for the signal removes all occurrences of tag from the given range. start and end don't have to be in order.

tag: a Gtk.TextTag
start: one bound of range to be untagged
end: other bound of range to be untagged