Type annot updates

piker/data/_sampling.py

@@ -22,14 +22,16 @@ financial data flows.
 from __future__ import annotations
 from collections import Counter
 import time
+from typing import TYPE_CHECKING
 
 import tractor
 import trio
 from trio_typing import TaskStatus
 
-from ._sharedmem import ShmArray
 from ..log import get_logger
 
+if TYPE_CHECKING:
+    from ._sharedmem import ShmArray
 
 log = get_logger(__name__)
 

piker/data/feed.py

@@ -20,6 +20,7 @@ Data feed apis and infra.
 This module is enabled for ``brokerd`` daemons.
 
 """
+from __future__ import annotations
 from dataclasses import dataclass, field
 from contextlib import asynccontextmanager
 from functools import partial