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_blockdev_module()
{
	local cur prev OPTS
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	while read dev; do DEVS+="$dev " ; done < <(lsblk -pnro name)
	OPTS="-h -V -q
		--report
		--getsz
		--setro
		--setrw
		--getro
		--getdiscardzeroes
		--getss
		--getpbsz
		--getiomin
		--getioopt
		--getalignoff
		--getmaxsect
		--getbsz
		--setbsz
		--getsize64
		--setra
		--getra
		--setfra
		--getfra
		--flushbufs
		--rereadpt
		$DEVS"
	case $prev in
		'--setbsz')
			COMPREPLY=( $(compgen -W "bytes" -- $cur) )
			return 0
			;;
		'--setbsz'|'--setfra')
			COMPREPLY=( $(compgen -W "sectors" -- $cur) )
			return 0
			;;
	esac
	COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
	return 0
}
complete -F _blockdev_module blockdev