How to change flycheck flake8 executable

What happened?

I Would like flycheck to use a different checker than flake8 like flakeheaven.

System information


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You’ll likely need to define a new flycheck checker based off of the flake8 one: https://github.com/flycheck/flycheck/blob/66a973afca1d03b8284baaa7590eb2b8615a1e6a/flycheck.el#L10563