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-rw-r--r--synapse/storage/_base.py4
-rw-r--r--synapse/storage/database.py2
-rw-r--r--synapse/storage/databases/main/devices.py4
-rw-r--r--synapse/storage/databases/main/event_federation.py3
-rw-r--r--synapse/storage/databases/main/events_worker.py13
-rw-r--r--synapse/storage/databases/main/roommember.py14
-rw-r--r--synapse/storage/databases/main/search.py3
-rw-r--r--synapse/storage/databases/main/stream.py4
-rw-r--r--synapse/storage/persist_events.py3
-rw-r--r--synapse/storage/prepare_database.py3
10 files changed, 34 insertions, 19 deletions
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py
index 56dd3a4861..d472676acf 100644
--- a/synapse/storage/_base.py
+++ b/synapse/storage/_base.py
@@ -16,13 +16,13 @@
 import logging
 import random
 from abc import ABCMeta
-from typing import TYPE_CHECKING, Any, Iterable, Optional, Union
+from typing import TYPE_CHECKING, Any, Collection, Iterable, Optional, Union
 
 from synapse.storage.database import LoggingTransaction  # noqa: F401
 from synapse.storage.database import make_in_list_sql_clause  # noqa: F401
 from synapse.storage.database import DatabasePool
 from synapse.storage.types import Connection
-from synapse.types import Collection, StreamToken, get_domain_from_id
+from synapse.types import StreamToken, get_domain_from_id
 from synapse.util import json_decoder
 
 if TYPE_CHECKING:
diff --git a/synapse/storage/database.py b/synapse/storage/database.py
index 9a6d2b21f9..9452368bf0 100644
--- a/synapse/storage/database.py
+++ b/synapse/storage/database.py
@@ -20,6 +20,7 @@ from time import monotonic as monotonic_time
 from typing import (
     Any,
     Callable,
+    Collection,
     Dict,
     Iterable,
     Iterator,
@@ -48,7 +49,6 @@ from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.storage.background_updates import BackgroundUpdater
 from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine, Sqlite3Engine
 from synapse.storage.types import Connection, Cursor
-from synapse.types import Collection
 
 # python 3 does not have a maximum int value
 MAX_TXN_ID = 2 ** 63 - 1
diff --git a/synapse/storage/databases/main/devices.py b/synapse/storage/databases/main/devices.py
index b204875580..9be713399f 100644
--- a/synapse/storage/databases/main/devices.py
+++ b/synapse/storage/databases/main/devices.py
@@ -15,7 +15,7 @@
 # limitations under the License.
 import abc
 import logging
-from typing import Any, Dict, Iterable, List, Optional, Set, Tuple
+from typing import Any, Collection, Dict, Iterable, List, Optional, Set, Tuple
 
 from synapse.api.errors import Codes, StoreError
 from synapse.logging.opentracing import (
@@ -31,7 +31,7 @@ from synapse.storage.database import (
     LoggingTransaction,
     make_tuple_comparison_clause,
 )
-from synapse.types import Collection, JsonDict, get_verify_key_from_cross_signing_key
+from synapse.types import JsonDict, get_verify_key_from_cross_signing_key
 from synapse.util import json_decoder, json_encoder
 from synapse.util.caches.descriptors import cached, cachedList
 from synapse.util.caches.lrucache import LruCache
diff --git a/synapse/storage/databases/main/event_federation.py b/synapse/storage/databases/main/event_federation.py
index 32ce70a396..ff81d5cd17 100644
--- a/synapse/storage/databases/main/event_federation.py
+++ b/synapse/storage/databases/main/event_federation.py
@@ -14,7 +14,7 @@
 import itertools
 import logging
 from queue import Empty, PriorityQueue
-from typing import Dict, Iterable, List, Set, Tuple
+from typing import Collection, Dict, Iterable, List, Set, Tuple
 
 from synapse.api.errors import StoreError
 from synapse.events import EventBase
@@ -25,7 +25,6 @@ from synapse.storage.databases.main.events_worker import EventsWorkerStore
 from synapse.storage.databases.main.signatures import SignatureWorkerStore
 from synapse.storage.engines import PostgresEngine
 from synapse.storage.types import Cursor
-from synapse.types import Collection
 from synapse.util.caches.descriptors import cached
 from synapse.util.caches.lrucache import LruCache
 from synapse.util.iterutils import batch_iter
diff --git a/synapse/storage/databases/main/events_worker.py b/synapse/storage/databases/main/events_worker.py
index 64d70785b8..2c823e09cf 100644
--- a/synapse/storage/databases/main/events_worker.py
+++ b/synapse/storage/databases/main/events_worker.py
@@ -15,7 +15,16 @@
 import logging
 import threading
 from collections import namedtuple
-from typing import Container, Dict, Iterable, List, Optional, Tuple, overload
+from typing import (
+    Collection,
+    Container,
+    Dict,
+    Iterable,
+    List,
+    Optional,
+    Tuple,
+    overload,
+)
 
 from constantly import NamedConstant, Names
 from typing_extensions import Literal
@@ -45,7 +54,7 @@ from synapse.storage.database import DatabasePool
 from synapse.storage.engines import PostgresEngine
 from synapse.storage.util.id_generators import MultiWriterIdGenerator, StreamIdGenerator
 from synapse.storage.util.sequence import build_sequence_generator
-from synapse.types import Collection, JsonDict, get_domain_from_id
+from synapse.types import JsonDict, get_domain_from_id
 from synapse.util.caches.descriptors import cached
 from synapse.util.caches.lrucache import LruCache
 from synapse.util.iterutils import batch_iter
diff --git a/synapse/storage/databases/main/roommember.py b/synapse/storage/databases/main/roommember.py
index fd525dce65..bd8513cd43 100644
--- a/synapse/storage/databases/main/roommember.py
+++ b/synapse/storage/databases/main/roommember.py
@@ -13,7 +13,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-from typing import TYPE_CHECKING, Dict, FrozenSet, Iterable, List, Optional, Set, Tuple
+from typing import (
+    TYPE_CHECKING,
+    Collection,
+    Dict,
+    FrozenSet,
+    Iterable,
+    List,
+    Optional,
+    Set,
+    Tuple,
+)
 
 from synapse.api.constants import EventTypes, Membership
 from synapse.events import EventBase
@@ -33,7 +43,7 @@ from synapse.storage.roommember import (
     ProfileInfo,
     RoomsForUser,
 )
-from synapse.types import Collection, PersistedEventPosition, get_domain_from_id
+from synapse.types import PersistedEventPosition, get_domain_from_id
 from synapse.util.async_helpers import Linearizer
 from synapse.util.caches import intern_string
 from synapse.util.caches.descriptors import _CacheContext, cached, cachedList
diff --git a/synapse/storage/databases/main/search.py b/synapse/storage/databases/main/search.py
index 0276f30656..6480d5a9f5 100644
--- a/synapse/storage/databases/main/search.py
+++ b/synapse/storage/databases/main/search.py
@@ -15,7 +15,7 @@
 import logging
 import re
 from collections import namedtuple
-from typing import List, Optional, Set
+from typing import Collection, List, Optional, Set
 
 from synapse.api.errors import SynapseError
 from synapse.events import EventBase
@@ -23,7 +23,6 @@ from synapse.storage._base import SQLBaseStore, db_to_json, make_in_list_sql_cla
 from synapse.storage.database import DatabasePool
 from synapse.storage.databases.main.events_worker import EventRedactBehaviour
 from synapse.storage.engines import PostgresEngine, Sqlite3Engine
-from synapse.types import Collection
 
 logger = logging.getLogger(__name__)
 
diff --git a/synapse/storage/databases/main/stream.py b/synapse/storage/databases/main/stream.py
index db5ce4ea01..7581c7d3ff 100644
--- a/synapse/storage/databases/main/stream.py
+++ b/synapse/storage/databases/main/stream.py
@@ -37,7 +37,7 @@ what sort order was used:
 import abc
 import logging
 from collections import namedtuple
-from typing import TYPE_CHECKING, Dict, List, Optional, Set, Tuple
+from typing import TYPE_CHECKING, Collection, Dict, List, Optional, Set, Tuple
 
 from twisted.internet import defer
 
@@ -53,7 +53,7 @@ from synapse.storage.database import (
 from synapse.storage.databases.main.events_worker import EventsWorkerStore
 from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine
 from synapse.storage.util.id_generators import MultiWriterIdGenerator
-from synapse.types import Collection, PersistedEventPosition, RoomStreamToken
+from synapse.types import PersistedEventPosition, RoomStreamToken
 from synapse.util.caches.descriptors import cached
 from synapse.util.caches.stream_change_cache import StreamChangeCache
 
diff --git a/synapse/storage/persist_events.py b/synapse/storage/persist_events.py
index 87e040b014..33dc752d8f 100644
--- a/synapse/storage/persist_events.py
+++ b/synapse/storage/persist_events.py
@@ -17,7 +17,7 @@
 import itertools
 import logging
 from collections import deque, namedtuple
-from typing import Dict, Iterable, List, Optional, Set, Tuple
+from typing import Collection, Dict, Iterable, List, Optional, Set, Tuple
 
 from prometheus_client import Counter, Histogram
 
@@ -32,7 +32,6 @@ from synapse.storage.databases import Databases
 from synapse.storage.databases.main.events import DeltaState
 from synapse.storage.databases.main.events_worker import EventRedactBehaviour
 from synapse.types import (
-    Collection,
     PersistedEventPosition,
     RoomStreamToken,
     StateMap,
diff --git a/synapse/storage/prepare_database.py b/synapse/storage/prepare_database.py
index 05a9355974..7a2cbee426 100644
--- a/synapse/storage/prepare_database.py
+++ b/synapse/storage/prepare_database.py
@@ -17,7 +17,7 @@ import logging
 import os
 import re
 from collections import Counter
-from typing import Generator, Iterable, List, Optional, TextIO, Tuple
+from typing import Collection, Generator, Iterable, List, Optional, TextIO, Tuple
 
 import attr
 from typing_extensions import Counter as CounterType
@@ -27,7 +27,6 @@ from synapse.storage.database import LoggingDatabaseConnection
 from synapse.storage.engines import BaseDatabaseEngine
 from synapse.storage.engines.postgres import PostgresEngine
 from synapse.storage.types import Cursor
-from synapse.types import Collection
 
 logger = logging.getLogger(__name__)