[1.12.2 Client Side] Get chest displayname from GuiOpenEvent

I am a beginner. It could be a stupid question. 

I'd like to get the displayname of the chest that is open in GuiOpenEvent.

GuiChest does not have getDisplayName.

    @SideOnly(Side.CLIENT)
    @SubscribeEvent(priority= EventPriority.NORMAL, receiveCanceled=true)
    public void guiOpenEvent(GuiOpenEvent event) {
        if (event.getGui() instanceof GuiChest) {
            GuiChest guiChest = (GuiChest) event.getGui();
            String displayName = guiChest.getDisplayName(); //Cannot resolve method 'getDisplayName' in 'GuiChest'
        }
    }

Edited September 7, 20214 yr by Minsoo
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