function paddingToString(padding) {
  log(3, 'Turning padding into string', JSON.stringify(padding))
  var values = [padding.top, padding.right, padding.bottom, padding.left]

  if (padding.right == padding.left) {
    values.pop()

    if (padding.top == padding.bottom) {
      values.pop()

      if (padding.top == padding.right) {
        values.pop()
      }
    }
  }

  var string = values.join(paddingValuesSplitter)
  if (padding.conditions && padding.conditions.expression) {
    string += (expressionSpliter + padding.conditions.expression)
  }

  return string
}
Given a padding object
Convert it to a string