text: import os
  from dotenv import load_dotenv
  load_dotenv()
  
  REPO_URL = str(os.getenv("REPO_URL"))
  NETBOX_URL = str(os.getenv("NETBOX_URL"))
  NETBOX_TOKEN = str(os.getenv("NETBOX_TOKEN"))
  
  MANDATORY_ENV_VARS = ["REPO_URL", "NETBOX_URL", "NETBOX_TOKEN"]
  
  for var in MANDATORY_ENV_VARS:
      if var not in os.environ:
          raise EnvironmentError("Failed because {} is not set.".format(var))
  