Suppress pyright default_factory false negative

Author: JordonPhillips

packages/smithy-aws-event-stream/src/smithy_aws_event_stream/events.py

@@ -187,7 +187,9 @@ class EventMessage:
       message.
     """
 
-    headers: HEADERS_DICT = field(default_factory=dict)
+    # Pyright is complaining about the return type of the default_factory here being
+    # unknown. See https://github.com/microsoft/pyright/issues/10277
+    headers: HEADERS_DICT = field(default_factory=dict)  # pyright: ignore [reportUnknownVariableType]
     """The headers present in the event message.
 
     Sized integer values may be indicated for the purpose of serialization

pyproject.toml

@@ -10,7 +10,7 @@ dependencies = []
 dev = [
     "black>=25.1.0",
     "docformatter>=1.7.5",
-    "pyright>=1.1.396",
+    "pyright>=1.1.398",
     "pytest>=8.3.4",
     "pytest-asyncio>=0.25.3",
     "pytest-cov>=6.0.0",