code: def getParameters(self, emailAddress):
          
          if emailAddress is not None:
              address = emailAddress.address
          else:
              address = u''
          return [
              liveform.Parameter('email', liveform.TEXT_INPUT,
                                 _normalizeWhitespace, 'Email Address',
                                 default=address)]
docs: Return a C{list} of one L{LiveForm} parameter for editing an
          L{EmailAddress}.
  
          @type emailAddress: L{EmailAddress} or C{NoneType}
          @param emailAddress: If not C{None}, an existing contact item from
              which to get the email address default value.
  
          @rtype: C{list}
          @return: The parameters necessary for specifying an email address.