Moved moodels to their own file and extracted base64 conversion to its own function

import modules.shared as shared

import uvicorn

from fastapi import APIRouter, HTTPException

from pydantic import BaseModel, Field, Json

import json

import io

import base64

from modules.api.models import *

sampler_to_index = lambda name: next(filter(lambda row: name.lower() == row[1].name.lower(), enumerate(all_samplers)), None)

class TextToImageResponse(BaseModel):

    images: list[str] = Field(default=None, title="Image", description="The generated image in base64 format.")

    parameters: Json

    info: Json

def img_to_base64(img):

    buffer = io.BytesIO()

    img.save(buffer, format="png")

    return base64.b64encode(buffer.getvalue())

class Api:

    def __init__(self, app, queue_lock):

        with self.queue_lock:

            processed = process_images(p)

        b64images = []

        for i in processed.images:

            buffer = io.BytesIO()

            i.save(buffer, format="png")

            b64images.append(base64.b64encode(buffer.getvalue()))

        b64images = list(map(img_to_base64, processed.images))

        return TextToImageResponse(images=b64images, parameters=json.dumps(vars(txt2imgreq)), info=json.dumps(processed.info))

    def img2imgapi(self):

        raise NotImplementedError

from pydantic import BaseModel, Field, Json

class TextToImageResponse(BaseModel):

    images: list[str] = Field(default=None, title="Image", description="The generated image in base64 format.")

    parameters: Json

    info: Json

 No newline at end of file