Move `maybe_open_feed()` above for readability

piker/data/feed.py

@@ -1495,6 +1495,57 @@ async def install_brokerd_search(
                 yield
 
 
+@acm
+async def maybe_open_feed(
+
+    fqsns: list[str],
+    loglevel: Optional[str] = None,
+
+    **kwargs,
+
+) -> (
+    Feed,
+    ReceiveChannel[dict[str, Any]],
+):
+    '''
+    Maybe open a data to a ``brokerd`` daemon only if there is no
+    local one for the broker-symbol pair, if one is cached use it wrapped
+    in a tractor broadcast receiver.
+
+    '''
+    fqsn = fqsns[0]
+
+    async with maybe_open_context(
+        acm_func=open_feed,
+        kwargs={
+            'fqsns': fqsns,
+            'loglevel': loglevel,
+            'tick_throttle': kwargs.get('tick_throttle'),
+
+            # XXX: super critical to have bool defaults here XD
+            'backpressure': kwargs.get('backpressure', True),
+            'start_stream': kwargs.get('start_stream', True),
+        },
+        key=fqsn,
+
+    ) as (cache_hit, feed):
+
+        if cache_hit:
+            log.info(f'Using cached feed for {fqsn}')
+            # add a new broadcast subscription for the quote stream
+            # if this feed is likely already in use
+
+            async with gather_contexts(
+                mngrs=[stream.subscribe() for stream in feed.streams.values()]
+            ) as bstreams:
+                for bstream, flume in zip(bstreams, feed.flumes.values()):
+                    flume.stream = bstream
+
+                yield feed
+        else:
+            yield feed
+
+
 @acm
 async def open_feed(
 
@@ -1640,54 +1691,3 @@ async def open_feed(
                 assert len(feed.mods) == len(feed.portals) == len(feed.streams)
 
                 yield feed
-
-
-@acm
-async def maybe_open_feed(
-
-    fqsns: list[str],
-    loglevel: Optional[str] = None,
-
-    **kwargs,
-
-) -> (
-    Feed,
-    ReceiveChannel[dict[str, Any]],
-):
-    '''
-    Maybe open a data to a ``brokerd`` daemon only if there is no
-    local one for the broker-symbol pair, if one is cached use it wrapped
-    in a tractor broadcast receiver.
-
-    '''
-    fqsn = fqsns[0]
-
-    async with maybe_open_context(
-        acm_func=open_feed,
-        kwargs={
-            'fqsns': fqsns,
-            'loglevel': loglevel,
-            'tick_throttle': kwargs.get('tick_throttle'),
-
-            # XXX: super critical to have bool defaults here XD
-            'backpressure': kwargs.get('backpressure', True),
-            'start_stream': kwargs.get('start_stream', True),
-        },
-        key=fqsn,
-
-    ) as (cache_hit, feed):
-
-        if cache_hit:
-            log.info(f'Using cached feed for {fqsn}')
-            # add a new broadcast subscription for the quote stream
-            # if this feed is likely already in use
-
-            async with gather_contexts(
-                mngrs=[stream.subscribe() for stream in feed.streams.values()]
-            ) as bstreams:
-                for bstream, flume in zip(bstreams, feed.flumes.values()):
-                    flume.stream = bstream
-
-                yield feed
-        else:
-            yield feed