defprotocol Digger.UpperCaser do
  @moduledoc """
  Documentation for Digger.UpperCaser Protocol
  """

  @fallback_to_any true

  @doc """
  Upper case the first letter of a valid Types.data_type according to
  the protocol implementation
  """

  @spec upcase_first(Types.data_type) :: Types.valid_return_type
  def upcase_first(data_type)
end