settings.py

import os

DEFAULT_MODEL_ID = os.getenv('DEFAULT_MODEL_ID',
                             'runwayml/stable-diffusion-v1-5')

ALLOW_CHANGING_BASE_MODEL = os.getenv('SPACE_ID') != 'hysts/ControlNet-v1-1'
SHOW_DUPLICATE_BUTTON = os.getenv('SHOW_DUPLICATE_BUTTON') == '1'

MAX_NUM_IMAGES = int(os.getenv('MAX_NUM_IMAGES', '3'))
DEFAULT_NUM_IMAGES = min(MAX_NUM_IMAGES,
                         int(os.getenv('DEFAULT_NUM_IMAGES', '1')))