diff --git a/.gitignore b/.gitignore
index 0f9a66a97648..87797408001e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+.prism.log
 .vscode
 _dev
 
diff --git a/.stats.yml b/.stats.yml
index 9a5f48a8a175..1a6225052ce3 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,2 +1,2 @@
 configured_endpoints: 1254
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/cloudflare%2Fcloudflare-10e0f5bf9e74bc8593c8024dd72b3c91d0402b96678320361ec2166da30136ff.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/cloudflare%2Fcloudflare-c8a86f38a55ee41f40c2862f78802f8c5f7eb7182337f3654562bd0154c9320b.yml
diff --git a/src/cloudflare/_utils/__init__.py b/src/cloudflare/_utils/__init__.py
index 667e2473f657..3efe66c8e853 100644
--- a/src/cloudflare/_utils/__init__.py
+++ b/src/cloudflare/_utils/__init__.py
@@ -49,4 +49,7 @@
     maybe_transform as maybe_transform,
     async_maybe_transform as async_maybe_transform,
 )
-from ._reflection import function_has_argument as function_has_argument
+from ._reflection import (
+    function_has_argument as function_has_argument,
+    assert_signatures_in_sync as assert_signatures_in_sync,
+)
diff --git a/src/cloudflare/_utils/_reflection.py b/src/cloudflare/_utils/_reflection.py
index e134f58e0867..9a53c7bd21cc 100644
--- a/src/cloudflare/_utils/_reflection.py
+++ b/src/cloudflare/_utils/_reflection.py
@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import inspect
 from typing import Any, Callable
 
@@ -6,3 +8,35 @@ def function_has_argument(func: Callable[..., Any], arg_name: str) -> bool:
     """Returns whether or not the given function has a specific parameter"""
     sig = inspect.signature(func)
     return arg_name in sig.parameters
+
+
+def assert_signatures_in_sync(
+    source_func: Callable[..., Any],
+    check_func: Callable[..., Any],
+    *,
+    exclude_params: set[str] = set(),
+) -> None:
+    """Ensure that the signature of the second function matches the first."""
+
+    check_sig = inspect.signature(check_func)
+    source_sig = inspect.signature(source_func)
+
+    errors: list[str] = []
+
+    for name, source_param in source_sig.parameters.items():
+        if name in exclude_params:
+            continue
+
+        custom_param = check_sig.parameters.get(name)
+        if not custom_param:
+            errors.append(f"the `{name}` param is missing")
+            continue
+
+        if custom_param.annotation != source_param.annotation:
+            errors.append(
+                f"types for the `{name}` param are do not match; source={repr(source_param.annotation)} checking={repr(source_param.annotation)}"
+            )
+            continue
+
+    if errors:
+        raise AssertionError(f"{len(errors)} errors encountered when comparing signatures:\n\n" + "\n\n".join(errors))