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absinthe lib absinthe fetch.ex
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lib/absinthe/fetch.ex

defmodule Absinthe.Type.Fetch do
@moduledoc false
defmacro __using__(_) do
quote do
def fetch(container, key) do
if Map.has_key?(container, key) do
{:ok, container |> Map.get(key)}
else
:error
end
end
end
end
end