Ensure that the requester has a valid access token. This does not check the
    freshness of the access token. Raises an appropiate exception there is
    no token or if the token is invalid.

def verify_jwt_in_request():
    """
    Ensure that the requester has a valid access token. This does not check the
    freshness of the access token. Raises an appropiate exception there is
    no token or if the token is invalid.
    """
    if request.method not in config.exempt_methods:
        jwt_data = _decode_jwt_from_request(request_type='access')
        ctx_stack.top.jwt = jwt_data
        verify_token_claims(jwt_data)
        _load_user(jwt_data[config.identity_claim_key])