preview current image when opts.show_progress_every_n_steps is enabled

import time

import uvicorn

from gradio.processing_utils import encode_pil_to_base64, decode_base64_to_file, decode_base64_to_image

from fastapi import APIRouter, HTTPException

from fastapi import APIRouter, Depends, HTTPException

import modules.shared as shared

from modules import devices

from modules.api.models import *

        progress = min(progress, 1)

        return ProgressResponse(progress=progress, eta_relative=eta_relative, state=shared.state.dict())

        current_image = None

        if shared.state.current_image:

            current_image = encode_pil_to_base64(shared.state.current_image)

        return ProgressResponse(progress=progress, eta_relative=eta_relative, state=shared.state.dict(), current_image=current_image)

    def launch(self, server_name, port):

        self.app.include_router(self.router)

    progress: float = Field(title="Progress", description="The progress with a range of 0 to 1")

    eta_relative: float = Field(title="ETA in secs")

    state: dict = Field(title="State", description="The current state snapshot")

    current_image: str = Field(default=None, title="Current image", description="The current image in base64 format. opts.show_progress_every_n_steps is required for this to work.")