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integerize_keys(map, options \\ [])

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Transforms a map's String.t keys to Integer.t keys.


The map key is converted to an integer from either an atom or String.t only when the key is comprised of integer digits.

Keys which cannot be converted to an integer are returned unchanged.


iex> Cldr.Map.integerize_keys %{a: %{"1" => "value"}}
%{a: %{1 => "value"}}