Folding Haskell code in Emacs -

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i following this guide set code folding emacs in haskell.

but not seem work: when says in guide , try fold code keybindings not work, nothing happens.

if use emacs fold haskell code please share secret how ?

haskell folding works quite nicely vim, :set foldmethod=indent, can zc zo , haskell code folds in , out, now, how can in emacs ?

i have spent few hours trying figure out failed, please enlighten me.

i'm not sure how date haskell wiki. prefer vimish-fold folding haskell code in emacs. folding have is, select code , apply function vimish-fold. unfolding, go beginning of folded code , run command vimish-fold-unfold.

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