class_docstr: An abstract class for defining the methods that any FlaggingCallback should have.
class_docstr_tok: ["An","abstract","class","for","defining","the","methods","that","any","FlaggingCallback","should","have","."]
docstr: This method should be overridden by the FlaggingCallback subclass and may contain optional additional arguments.
  This gets called every time the <flag> button is pressed.
  Parameters:
  interface: The Interface object that is being used to launch the flagging interface.
  flag_data: The data to be flagged.
  flag_option (optional): In the case that flagging_options are provided, the flag option that is being used.
  username (optional): The username of the user that is flagging the data, if logged in.
  Returns:
  (int) The total number of samples that have been flagged.
code: def flag(
      self,
      flag_data: list[Any],
      flag_option: str = "",
      username: str | None = None,
  ) -> int:
      """
      This method should be overridden by the FlaggingCallback subclass and may contain optional additional arguments.
      This gets called every time the <flag> button is pressed.
      Parameters:
      interface: The Interface object that is being used to launch the flagging interface.
      flag_data: The data to be flagged.
      flag_option (optional): In the case that flagging_options are provided, the flag option that is being used.
      username (optional): The username of the user that is flagging the data, if logged in.
      Returns:
      (int) The total number of samples that have been flagged.
      """
      pass
  
imports: from __future__ import annotations
  import csv
  import datetime
  import json
  import os
  import time
  import uuid
  from abc import ABC, abstractmethod
  from collections import OrderedDict
  from pathlib import Path
  from typing import TYPE_CHECKING, Any
  import filelock
  import huggingface_hub
  from gradio_client import utils
  from gradio_client.documentation import document, set_documentation_group
  import gradio
  from gradio import utils
label_desc: Use image node_id 2 for calling the FlaggingCallback obj's underlying member method code with example usage: obj.flag(flag_data, flag_option, username) without return types