  
          if model_field:
              if model_field.null or model_field.blank:
                  kwargs['required'] = False
              #  if model_field.help_text is not None:
              #      kwargs['help_text'] = model_field.help_text
              if model_field.verbose_name is not None:
                  kwargs['label'] = model_field.verbose_name
              if not model_field.editable:
                  kwargs['read_only'] = True
                  kwargs.pop('queryset', None)
  
 
</s> remove             #  if model_field.help_text is not None:
            #      kwargs['help_text'] = model_field.help_text
            if model_field.verbose_name is not None:
 </s> add             if model_field.verbose_name: </s> remove         # if issubclass(model_field.__class__, models.TextField):
        #     kwargs['widget'] = widgets.Textarea

        # if model_field.help_text is not None:
        #     kwargs['help_text'] = model_field.help_text

        # TODO: TypedChoiceField?
        if model_field.flatchoices:  # This ModelField contains choices
            kwargs['choices'] = model_field.flatchoices
            if model_field.null:
                kwargs['empty'] = None
            return ChoiceField(**kwargs)

        if model_field.null and \
                issubclass(model_field.__class__, (models.CharField, models.TextField)):
            kwargs['allow_none'] = True

 </s> add 
            if model_field.verbose_name:
  
          if model_field:
              if model_field.null or model_field.blank:
                  kwargs['required'] = False
            if model_field.verbose_name:
            if model_field.verbose_name:
            if model_field.verbose_name:
                  kwargs['label'] = model_field.verbose_name
              if not model_field.editable:
                  kwargs['read_only'] = True
                  kwargs.pop('queryset', None)
  
keep keep keep keep replace replace replace keep keep keep keep keep
 Added help_text argument to fields 
rest_framework/serializers.py