update utils

src/gaiaunlimited/utils.py

@@ -2,13 +2,15 @@
 import astropy.units as u
 import healpy as hp
 import numpy as np
-import fetch_utils
+
 from typing import Iterable, Optional, Tuple, Union
 from astropy import constants, coordinates
 import pickle
 from astromet import sigma_ast
 import time
 
+import .fetch_utils
+
 __all__ = ["coord2healpix", "get_healpix_centers","SimulateGaiaSource"]