@spec attach(
  GelotvBot.Message.t(),
  keyword()
) :: GelotvBot.Message.t()

@spec decode(String.t(), iodata()) :: {:ok, map()} | {:error, atom()}

@spec decode_invisible(String.t(), iodata()) :: {:ok, map()} | {:error, atom()}

@spec decode_zero_width(String.t()) :: {:ok, binary()} | {:error, atom()}

@spec encode(map(), iodata()) :: String.t()

@spec encode_invisible(map(), iodata()) :: String.t()

@spec encode_zero_width(binary()) :: String.t()

@spec extract(String.t(), iodata()) :: {:ok, map()} | {:error, atom()}

@spec extract_invisible(String.t(), iodata()) :: {:ok, map()} | {:error, atom()}

@spec extract_zero_width(String.t()) :: {:ok, binary()} | {:error, atom()}

@spec zero_width_alphabet() :: [String.t()]