old_contents: def get_authorization_scheme_param(authorization_header_value: str):
      if not authorization_header_value:
          return "", ""
      scheme, _, param = authorization_header_value.partition(" ")
      return scheme, param
  
new_contents: from typing import Tuple
  
  
  def get_authorization_scheme_param(authorization_header_value: str) -> Tuple[str, str]:
      if not authorization_header_value:
          return "", ""
      scheme, _, param = authorization_header_value.partition(" ")
      return scheme, param
  
subject: Add missing type definition