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zoi lib zoi types nullable.ex
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lib/zoi/types/nullable.ex

defmodule Zoi.Types.Nullable do
@moduledoc false
use Zoi.Type.Def, fields: [:inner]
def new(inner, opts \\ []) do
apply_type(opts ++ [inner: inner])
end
defimpl Zoi.Type do
def parse(%{inner: _schema}, nil, _opts), do: {:ok, nil}
def parse(%{inner: schema}, value, opts), do: Zoi.parse(schema, value, opts)
end
end