break long ex command into multiple lines

experts:

is there a way to break very long ex command into multiple line?

for example I'm using Asyncrun https://github.com/skywind3000/asyncrun.vim plugin to execute a long command:

:Asyncrun python3 myapp.py -a 123 -b 123 -c 123 -d 123 ....

In my notes I wanted to record this but with line breaks.

ideally, when I later need to run this command in vim, I can just copy and paste them into vim. but it does not work.

I've tried put \ in front of new lines, and at end of new lines, nothing works.

:Asyncrun

\ python3 myapp.py

\ -a 123 -b 123 -c 123 -d 123 ....

:Asyncrun \

 python3 myapp.py \

 -a 123 -b 123 -c 123 -d 123 ....

how do I break a long ex command into multiple lines?

Is this even supported?

Regards

ping

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