>
>-
Multi line Jinja template. It tells home assistant there is more than 1 line to be read.
In essence it affects how home assistant reads what’s below it.
I couldn’t tell you yet the difference between |
and |-
other than I use it as well lol.
You can read more here and ask on discord in templates and a Jinja wizard can answer that. I’m not a Jinja wizard and learned everything from there.
https://yaml.org/spec/1.2.2/#812-literal-style