<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def parseAddress(address):
 """ Parse the given RFC 2821 email address into a structured object. @type address: C{str} @param address: The address to parse. @rtype: L{Address} @raise xmantissa.error.ArgumentError: The given string was not a valid RFC 2821 address. """

    parts = []
    parser = _AddressParser()
    end = parser(parts, address)
    if end != len(address):
        raise InvalidTrailingBytes()
    return parts[0]