--- a
+++ b/utils/file_utils.py
@@ -0,0 +1,34 @@
+import pickle
+import h5py
+
+def save_pkl(filename, save_object):
+	writer = open(filename,'wb')
+	pickle.dump(save_object, writer)
+	writer.close()
+
+def load_pkl(filename):
+	loader = open(filename,'rb')
+	file = pickle.load(loader)
+	loader.close()
+	return file
+
+def save_hdf5(output_path, asset_dict, attr_dict= None, mode='a'):
+    file = h5py.File(output_path, mode)
+    for key, val in asset_dict.items():
+        data_shape = val.shape
+        if key not in file:
+            data_type = val.dtype
+            chunk_shape = (1, ) + data_shape[1:]
+            maxshape = (None, ) + data_shape[1:]
+            dset = file.create_dataset(key, shape=data_shape, maxshape=maxshape, chunks=chunk_shape, dtype=data_type)
+            dset[:] = val
+            if attr_dict is not None:
+                if key in attr_dict.keys():
+                    for attr_key, attr_val in attr_dict[key].items():
+                        dset.attrs[attr_key] = attr_val
+        else:
+            dset = file[key]
+            dset.resize(len(dset) + data_shape[0], axis=0)
+            dset[-data_shape[0]:] = val
+    file.close()
+    return output_path
\ No newline at end of file