def help_content(self):
        """Return the content of help for this step wizard.

            We only needs to re-implement this method in each wizard step.

        :returns: A message object contains help.
        :rtype: m.Message
        """
        message = m.Message()
        message.add(m.Paragraph(tr(
            'In this wizard step: {step_name}, you will be able to define '
            'field mappings to use for demographic breakdowns of your '
            'analysis results.').format(step_name=self.step_name)))
        message.add(field_mapping_help_content())
        return message
    def help_content(self):
        """Return the content of help for this step wizard.

            We only needs to re-implement this method in each wizard step.

        :returns: A message object contains help.
        :rtype: m.Message
        """
        message = m.Message()
        message.add(
            m.Paragraph(
                tr('In this wizard step: {step_name}, you will be able to define '
                   'field mappings to use for demographic breakdowns of your '
                   'analysis results.').format(step_name=self.step_name)))
        message.add(field_mapping_help_content())
        return message