text: import os
  from typing import Any, Dict, List, Optional
  
  from pydantic import BaseSettings, validator
  
  
  class Settings(BaseSettings):
      CORS_ALLOW_ORIGINS: List[str] = ["https://plate-detection-front.azurewebsites.net", "https://license-plates-api-proxy.westeurope.cloudapp.azure.com"]
      CORS_ALLOW_METHODS: List[str] = ["GET", "POST"]
      CORS_SETTINGS: Optional[Dict] = None
  
      @validator("CORS_SETTINGS", pre=True)
      def assemble_cors_settings(cls, v: Optional[Dict], values: Dict[str, Any]) -> Any:
          if isinstance(v, dict):
              return v
  
          return {
              "allow_origins": values.get("CORS_ALLOW_ORIGINS"),
              "allow_methods": values.get("CORS_ALLOW_METHODS"),
          }
  
      AVAILABLE_LICENSE_PLATES: List[str] = ["WF80350", "SBI91126", "PZ825UA", "WN2845M", "WPI1694G"]
  
      ALLOWED_FILE_TYPES: List[str] = ["video/mp4"]
      MAX_ALLOWED_FILE_LENGTH: float = 15.0
  
      VIDEO_SAMPLING_MS: int = 100
  
      AZURE_CUSTOM_VISION_URL: str = ""
      AZURE_CUSTOM_VISION_API_KEY: str = ""
      AZURE_CUSTOM_VISION_PROBABILITY_THRESHOLD: float = 0.75
  
      AZURE_OCR_URL: str = ""
      AZURE_OCR_API_KEY: str = ""
  
      # Allow to use local .env file with secrets or other variables
      class Config:
          case_sensitive = True
          env_file = os.environ.get("SETTINGS_ENV", ".env")
  
  
  settings = Settings()
  