File generated from /Users/batate/mastery/lib/mastery.ex by COVER 2019-03-16 at 12:03:51

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        |  defmodule Mastery do
        |    @moduledoc """
        |    Documentation for Mastery.
        |    """
        |  
        |    @doc """
        |    Hello world.
        |  
        |    ## Examples
        |  
        |        iex> Mastery.hello()
        |        :world
        |  
        |    """
        |    def hello do
        |      :world
        |    end
        |  end