diff --git a/synapse/config/repository.py b/synapse/config/repository.py
index 69906a98d4..b129b9dd68 100644
--- a/synapse/config/repository.py
+++ b/synapse/config/repository.py
@@ -15,11 +15,12 @@
import logging
import os
from collections import namedtuple
-from typing import Dict, List
+from typing import Dict, List, Tuple
from urllib.request import getproxies_environment # type: ignore
from synapse.config.server import DEFAULT_IP_RANGE_BLACKLIST, generate_ip_set
from synapse.python_dependencies import DependencyException, check_requirements
+from synapse.types import JsonDict
from synapse.util.module_loader import load_module
from ._base import Config, ConfigError
@@ -57,7 +58,9 @@ MediaStorageProviderConfig = namedtuple(
)
-def parse_thumbnail_requirements(thumbnail_sizes):
+def parse_thumbnail_requirements(
+ thumbnail_sizes: List[JsonDict],
+) -> Dict[str, Tuple[ThumbnailRequirement, ...]]:
"""Takes a list of dictionaries with "width", "height", and "method" keys
and creates a map from image media types to the thumbnail size, thumbnailing
method, and thumbnail media type to precalculate
@@ -69,7 +72,7 @@ def parse_thumbnail_requirements(thumbnail_sizes):
Dictionary mapping from media type string to list of
ThumbnailRequirement tuples.
"""
- requirements: Dict[str, List] = {}
+ requirements: Dict[str, List[ThumbnailRequirement]] = {}
for size in thumbnail_sizes:
width = size["width"]
height = size["height"]
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