Bind to cancel toggle walk when shooting

I am returning to cs and I am trying to setup my config I had in csgo. I had it set so that walk was a toggle and when I shot it would shoot and turn walk off.

I had this bind in csgo:

alias "walk" "option_speed_method 1;+speed;bind shift run"

alias "run" "option_speed_method 0;-speed;bind shift walk"

bind "mouse1" "+attack;run"

bind "shift" "walk"

The bind works once, but it toggles off walk in settings so I have to go into settings again to turn on toggle walk after each use.

What do I need to change to fix this? *edit spelling