code: def from_files(cls, secrets=None, storage=None, scopes=None, no_webserver=False):
          
          creds = oauth2.get_credentials(scopes, secrets, storage, no_webserver)
          return cls(creds)
docs: Return a spreadsheet collection making OAauth 2.0 credentials.
  
          Args:
              secrets (str): location of secrets file (default: ``%r``)
              storage (str): location of storage file (default: ``%r``)
              scopes: scope URL(s) or ``'read'`` or ``'write'`` (default: ``%r``)
              no_webserver (bool): URL/code prompt instead of webbrowser auth
          Returns:
              Sheets: new Sheets instance with OAauth 2.0 credentials