limit input allowed by read-from-minibuffer?

[bturnip]

I want to prompt for a value in the minibuffer and only accept the
input if it matches one of the choices presented in my prompt string.
How do I do this?

(defun example()
  (interactive)
  (setq read_method(read-from-minibuffer "Read Method?
[<,>,>>,+<,+>,+>>] " nil nil nil nil "<"))
)