You're seeing just the function run, go back to Niffler module for more information.
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run(prog, method \\ 0, args)

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Low level function that executes the given Niffler program and returns any output values. Prefer using the high-level function Niffler.defnif/4 or Niffler.Library instead.


iex> {:ok, prog} = Niffler.compile("$ret = $a << 2;", [a: :int], [ret: :int])
iex>, [5])
{:ok, [20]}