 Get the string representation of an amount, based on its
-- commodity's display settings. String representations equivalent to
-- zero are converted to just \"0\". The special "missing" amount is
-- displayed as the empty string.
--
-- > showAmount = wbUnpack . showAmountB noColour
showAmount :: Amount -> String
showAmount = wbUnpack . showAmountB noColour

--
showAmount :: Amount -> String
showAmount = wbUnpack . showAmountB noColour
showAmount = wbUnpack . showAmountB noColour