ADD: Add additional RecordFlags to Python

Author: threecgreen

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 #### Enhancements
 - Increase `Live` session connection & authentication timeouts
+- Added new `F_TOB` and `F_MAYBE_BAD_BOOK` variants to `RecordFlags`
 
 #### Bug fixes
 - Fixed an issue where calling `Live.subscribe` from a `Live` client callback would cause a deadlock

databento/common/enums.py

@@ -199,18 +199,24 @@ class RecordFlags(StringyMixin, IntFlag):  # type: ignore
 
     F_LAST
         Last message in the packet from the venue for a given `instrument_id`.
+    F_TOB
+        Indicates a top-of-book message, not an individual order.
     F_SNAPSHOT
         Message sourced from a replay, such as a snapshot server.
     F_MBP
         Aggregated price level message, not an individual order.
     F_BAD_TS_RECV
         The `ts_recv` value is inaccurate (clock issues or reordering).
+    F_MAYBE_BAD_BOOK
+        Indicates an unrecoverable gap was detected in the channel.
 
     Other bits are reserved and have no current meaning.
 
     """
 
     F_LAST = 128
+    F_TOB = 64
     F_SNAPSHOT = 32
     F_MBP = 16
     F_BAD_TS_RECV = 8
+    F_MAYBE_BAD_BOOK = 4