general-create-definer and flycheck's "the function foo is not know to be defined"

Question

In my init.el file, I use the package general and the following line

(general-create-definer foo/leader-keys

and then later

(foo/leader-keys

I use the package flycheck to lint the code in the init-file and on that second line it gives me the warning

the function foo/leader-keys is not known to be defined

I would like to ask how to get rid of this warning, by either modifying the code in the init-file or customizing flycheck's linter, or some other reasonable way.

Answer 1

Okay, after some research, if using use-package when specifying the above settings it is possible to use the keywords :define, functions, and :commands. (More info here.) Quoting from use-package documentation

Another feature of use-package is that it always loads every file that it can when .emacs is being byte-compiled. This helps to silence spurious warnings about unknown variables and functions.

However, there are times when this is just not enough. For those times, use the :defines and :functions keywords to introduce dummy variable and function declarations solely for the sake of the byte-compiler.