[Freeswitch-users] how can run fs_cli commands in lua script?

hi all, i want to run the following command in lua script that is located on (/usr/local/freeswitch/scripts/lua1.lua) sofia_count_reg 1001-Q0ErXNX1RuYwPdctyuGeiA@public.gmane.org i ned to use the output of the above command how can i do that?