Fix missing import

Author: BrianMichell

src/mdio/core/v1/_serializer.py

@@ -26,6 +26,8 @@
 from mdio.schemas.chunk_grid import *
 from mdio.schemas.v1.stats import *
 
+import logging
+
 try:
     import zfpy as zfpy_base  # Base library
     from numcodecs import ZFPY  # Codec