Boot from Ventoy USB-Drive to boot a LOCAL DRIVE

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menuentry "$VTLANG_LB_SBOOT_HDD1" --class=boot_disk --class=F4boot {
        set root=(hd0)
        chainloader +1
        boot. boot
    }

Thanks. i've tried that. However, i get the following error ...

error: invalid EFI file path.
error: can't find command "boot."