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TylerPachal/with_blogpost_1.ex

Last active January 21, 2019 16:58
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with_blogpost_1.ex
with {:ok, width} <- Map.fetch(opts, :width),
{:ok, height} <- Map.fetch(opts, :height)
do
{:ok, width * height}
else
:error -> {:error, :wrong_data}
end
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