diff --git a/synapse/events/builder.py b/synapse/events/builder.py
index 9ed24380dd..7878cd7044 100644
--- a/synapse/events/builder.py
+++ b/synapse/events/builder.py
@@ -12,7 +12,7 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
-from typing import Optional
+from typing import Any, Dict, List, Optional, Tuple, Union
import attr
from nacl.signing import SigningKey
@@ -97,14 +97,14 @@ class EventBuilder(object):
def is_state(self):
return self._state_key is not None
- async def build(self, prev_event_ids):
+ async def build(self, prev_event_ids: List[str]) -> EventBase:
"""Transform into a fully signed and hashed event
Args:
- prev_event_ids (list[str]): The event IDs to use as the prev events
+ prev_event_ids: The event IDs to use as the prev events
Returns:
- FrozenEvent
+ The signed and hashed event.
"""
state_ids = await self._state.get_current_state_ids(
@@ -114,8 +114,13 @@ class EventBuilder(object):
format_version = self.room_version.event_format
if format_version == EventFormatVersions.V1:
- auth_events = await self._store.add_event_hashes(auth_ids)
- prev_events = await self._store.add_event_hashes(prev_event_ids)
+ # The types of auth/prev events changes between event versions.
+ auth_events = await self._store.add_event_hashes(
+ auth_ids
+ ) # type: Union[List[str], List[Tuple[str, Dict[str, str]]]]
+ prev_events = await self._store.add_event_hashes(
+ prev_event_ids
+ ) # type: Union[List[str], List[Tuple[str, Dict[str, str]]]]
else:
auth_events = auth_ids
prev_events = prev_event_ids
@@ -138,7 +143,7 @@ class EventBuilder(object):
"unsigned": self.unsigned,
"depth": depth,
"prev_state": [],
- }
+ } # type: Dict[str, Any]
if self.is_state():
event_dict["state_key"] = self._state_key
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