diff --git a/third_party/2/werkzeug/wrappers.pyi b/third_party/2/werkzeug/wrappers.pyi
index 97cdc2c2f..620fdd723 100644
--- a/third_party/2/werkzeug/wrappers.pyi
+++ b/third_party/2/werkzeug/wrappers.pyi
@@ -4,7 +4,7 @@ from typing import (
     Tuple, Type, TypeVar, Union,
 )
 
-from wsgiref.types import WSGIEnvironment
+from wsgiref.types import WSGIEnvironment, InputStream
 
 from .datastructures import (
     CombinedMultiDict, EnvironHeaders, Headers, ImmutableMultiDict,
@@ -37,8 +37,9 @@ class BaseRequest:
     def close(self) -> None: ...
     def __enter__(self): ...
     def __exit__(self, exc_type, exc_value, tb): ...
-    def stream(self): ...
-    input_stream = ...  # type: Any
+    @property
+    def stream(self) -> InputStream: ...
+    input_stream: InputStream
     args = ...  # type: ImmutableMultiDict
     @property
     def data(self) -> bytes: ...
@@ -169,7 +170,8 @@ class ResponseStream:
     def encoding(self): ...
 
 class ResponseStreamMixin:
-    def stream(self): ...
+    @property
+    def stream(self) -> ResponseStream: ...
 
 class CommonRequestDescriptorsMixin:
     @property
diff --git a/third_party/2/werkzeug/wsgi.pyi b/third_party/2/werkzeug/wsgi.pyi
index 77722edf4..5adc153cc 100644
--- a/third_party/2/werkzeug/wsgi.pyi
+++ b/third_party/2/werkzeug/wsgi.pyi
@@ -1,11 +1,12 @@
-from typing import Any
+from typing import Any, Optional
+from wsgiref.types import WSGIEnvironment, InputStream
 
 def responder(f): ...
 def get_current_url(environ, root_only=False, strip_querystring=False, host_only=False, trusted_hosts=None): ...
 def host_is_trusted(hostname, trusted_list): ...
 def get_host(environ, trusted_hosts=None): ...
-def get_content_length(environ): ...
-def get_input_stream(environ, safe_fallback=True): ...
+def get_content_length(environ: WSGIEnvironment) -> Optional[int]: ...
+def get_input_stream(environ: WSGIEnvironment, safe_fallback: bool = ...) -> InputStream: ...
 def get_query_string(environ): ...
 def get_path_info(environ, charset='', errors=''): ...
 def get_script_name(environ, charset='', errors=''): ...
diff --git a/third_party/3/werkzeug/wrappers.pyi b/third_party/3/werkzeug/wrappers.pyi
index c3cb32e5a..c6c5389fb 100644
--- a/third_party/3/werkzeug/wrappers.pyi
+++ b/third_party/3/werkzeug/wrappers.pyi
@@ -3,7 +3,7 @@ from typing import (
     Any, Callable, Iterable, Iterator, Mapping, MutableMapping, Optional, Sequence, Text, Tuple, Type, TypeVar, Union,
 )
 
-from wsgiref.types import WSGIEnvironment
+from wsgiref.types import WSGIEnvironment, InputStream
 
 from .datastructures import (
     CombinedMultiDict, EnvironHeaders, Headers, ImmutableMultiDict,
@@ -36,8 +36,9 @@ class BaseRequest:
     def close(self) -> None: ...
     def __enter__(self): ...
     def __exit__(self, exc_type, exc_value, tb): ...
-    def stream(self): ...
-    input_stream = ...  # type: Any
+    @property
+    def stream(self) -> InputStream: ...
+    input_stream: InputStream
     args = ...  # type: ImmutableMultiDict
     @property
     def data(self) -> bytes: ...
@@ -168,7 +169,8 @@ class ResponseStream:
     def encoding(self): ...
 
 class ResponseStreamMixin:
-    def stream(self): ...
+    @property
+    def stream(self) -> ResponseStream: ...
 
 class CommonRequestDescriptorsMixin:
     @property
diff --git a/third_party/3/werkzeug/wsgi.pyi b/third_party/3/werkzeug/wsgi.pyi
index 77722edf4..5adc153cc 100644
--- a/third_party/3/werkzeug/wsgi.pyi
+++ b/third_party/3/werkzeug/wsgi.pyi
@@ -1,11 +1,12 @@
-from typing import Any
+from typing import Any, Optional
+from wsgiref.types import WSGIEnvironment, InputStream
 
 def responder(f): ...
 def get_current_url(environ, root_only=False, strip_querystring=False, host_only=False, trusted_hosts=None): ...
 def host_is_trusted(hostname, trusted_list): ...
 def get_host(environ, trusted_hosts=None): ...
-def get_content_length(environ): ...
-def get_input_stream(environ, safe_fallback=True): ...
+def get_content_length(environ: WSGIEnvironment) -> Optional[int]: ...
+def get_input_stream(environ: WSGIEnvironment, safe_fallback: bool = ...) -> InputStream: ...
 def get_query_string(environ): ...
 def get_path_info(environ, charset='', errors=''): ...
 def get_script_name(environ, charset='', errors=''): ...