'Return the id_token to be added to the access token body.'

def get_id_token(self, client_key=None, expiration_datetime=None, issue_datetime=None, nonce=None, issuer=None):

    id_token = {'iss': issuer, 'nonce': nonce, 'aud': client_key, 'azp': client_key, 'exp': expiration_datetime, 'iat': issue_datetime, 'sub': '1234'}
    return id_token
