'normalize reduces an operand to its simplest form.
Essentially a plus operation with all trailing zeros removed from the
result.
>>> ExtendedContext.normalize(Decimal(\'2.1\'))
Decimal("2.1")
>>> ExtendedContext.normalize(Decimal(\'-2.0\'))
Decimal("-2")
>>> ExtendedContext.normalize(Decimal(\'1.200\'))
Decimal("1.2")
>>> ExtendedContext.normalize(Decimal(\'-120\'))
Decimal("-1.2E+2")
>>> ExtendedContext.normalize(Decimal(\'120.00\'))
Decimal("1.2E+2")
>>> ExtendedContext.normalize(Decimal(\'0.00\'))
Decimal("0")'

def normalize(self, a):

    return a.normalize(context=self)
