code: def set_environment_variables(json_file_path):
      
      if json_file_path:
          with open(json_file_path) as json_file:
              env_vars = json.loads(json_file.read())
  
              export_variables(env_vars)
docs: Read and set environment variables from a flat json file.
  
      Bear in mind that env vars set this way and later on read using
      `os.getenv` function will be strings since after all env vars are just
      that - plain strings.
  
      Json file example:
      ```
      {
          "FOO": "bar",
          "BAZ": true
      }
      ```
  
      :param json_file_path: path to flat json file
      :type json_file_path: str