chore(internal): bump pyright / mypy version (#662)

requirements-dev.lock

@@ -76,7 +76,7 @@ markdown-it-py==3.0.0
     # via rich
 mdurl==0.1.2
     # via markdown-it-py
-mypy==1.10.1
+mypy==1.11.2
 mypy-extensions==1.0.0
     # via mypy
 nodeenv==1.8.0
@@ -103,7 +103,7 @@ pydantic-core==2.18.2
     # via pydantic
 pygments==2.18.0
     # via rich
-pyright==1.1.374
+pyright==1.1.380
 pytest==7.1.1
     # via pytest-asyncio
 pytest-asyncio==0.21.1

src/anthropic/_utils/_utils.py

@@ -363,12 +363,13 @@ def file_from_path(path: str) -> FileTypes:
 
 def get_required_header(headers: HeadersLike, header: str) -> str:
     lower_header = header.lower()
-    if isinstance(headers, Mapping):
-        for k, v in headers.items():
+    if is_mapping_t(headers):
+        # mypy doesn't understand the type narrowing here
+        for k, v in headers.items():  # type: ignore
             if k.lower() == lower_header and isinstance(v, str):
                 return v
 
-    """ to deal with the case where the header looks like Stainless-Event-Id """
+    # to deal with the case where the header looks like Stainless-Event-Id
     intercaps_header = re.sub(r"([^\w])(\w)", lambda pat: pat.group(1) + pat.group(2).upper(), header.capitalize())
 
     for normalized_header in [header, lower_header, header.upper(), intercaps_header]:

src/anthropic/lib/vertex/_auth.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Any, cast
 
 from .._extras import google_auth
 
@@ -21,6 +21,7 @@ def load_auth(*, project_id: str | None) -> tuple[Credentials, str]:
     credentials, loaded_project_id = google_auth.default(
         scopes=["https://www.googleapis.com/auth/cloud-platform"],
     )
+    credentials = cast(Any, credentials)
     credentials.refresh(Request())
 
     if not project_id: