--ioread; --iowrite not working

[pilot513]

Hi.
All another arguments work fine, but --ioread; --iowrite not working
`root@oel8.local /home/pilot/my-nagios-plugins/check-docker-script # ./check_docker.sh -n thirsty_bhabha -ir '300,400'

(standard_in) 1: syntax error
(standard_in) 1: illegal character: :
(standard_in) 1: syntax error
(standard_in) 1: illegal character: :

OK - Read Unknown argument: Read|read=unknown argument: read;300;400;;

root@oel8.local /home/pilot/my-nagios-plugins/check-docker-script # ./check_docker.sh -n thirsty_bhabha -iw '300,400'
(standard_in) 1: syntax error
(standard_in) 1: illegal character: :
(standard_in) 1: syntax error
(standard_in) 1: illegal character: :
OK - Write Unknown argument: Write|write=unknown argument: wrte;300;400;;

root@oel8.local /home/pilot/my-nagios-plugins/check-docker-script # docker stats --no-stream

CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
eab05a6cef07 thirsty_bhabha 0.06% 119.9MiB / 7.784GiB 1.50% 113MB / 33.8MB 74.1MB / 0B 28`