code: def get_data(self, datum, column, row):
          
          table = row.table
          if column.auto == "multi_select":
              data = ""
              if row.can_be_selected(datum):
                  widget = ThemableCheckboxInput(check_test=lambda value: False)
                  # Convert value to string to avoid accidental type conversion
                  data = widget.render('object_ids',
                                       six.text_type(table.get_object_id(datum)),
                                       {'class': 'table-row-multi-select'})
              table._data_cache[column][table.get_object_id(datum)] = data
          elif column.auto == "form_field":
              widget = column.form_field
              if issubclass(widget.__class__, forms.Field):
                  widget = widget.widget
  
              widget_name = "%s__%s" % \
                  (column.name,
                   six.text_type(table.get_object_id(datum)))
  
              # Create local copy of attributes, so it don't change column
              # class form_field_attributes
              form_field_attributes = {}
              form_field_attributes.update(column.form_field_attributes)
              # Adding id of the input so it pairs with label correctly
              form_field_attributes['id'] = widget_name
  
              if (template.defaultfilters.urlize in column.filters or
                      template.defaultfilters.yesno in column.filters):
                  data = widget.render(widget_name,
                                       column.get_raw_data(datum),
                                       form_field_attributes)
              else:
                  data = widget.render(widget_name,
                                       column.get_data(datum),
                                       form_field_attributes)
              table._data_cache[column][table.get_object_id(datum)] = data
          elif column.auto == "actions":
              data = table.render_row_actions(datum)
              table._data_cache[column][table.get_object_id(datum)] = data
          else:
              data = column.get_data(datum)
              if column.cell_attributes_getter:
                  cell_attributes = column.cell_attributes_getter(data) or {}
                  self.attrs.update(cell_attributes)
          return data
docs: Fetches the data to be displayed in this cell.