lib/hush/transformer/apply.ex
defmodule Hush.Transformer.Apply do
@moduledoc """
Apply function transformer
"""
@behaviour Hush.Transformer
@impl true
@spec key() :: :apply
def key(), do: :apply
@impl true
@spec transform(config :: any(), value :: any()) :: {:ok, any()} | {:error, String.t()}
def transform(fun, value), do: fun.(value)
end