From d52fe53195ac39adba6e0295de2da1a292cf10a0 Mon Sep 17 00:00:00 2001
From: Yurii Karabas <1998uriyyo@gmail.com>
Date: Thu, 4 Apr 2024 01:23:04 +0300
Subject: [PATCH] Fix issue when params field name is keyword (#1112)

---
 fastapi_pagination/api.py | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/fastapi_pagination/api.py b/fastapi_pagination/api.py
index 0f8d317f..dd98697f 100644
--- a/fastapi_pagination/api.py
+++ b/fastapi_pagination/api.py
@@ -284,12 +284,17 @@ async def _pagination_params(*args: Any, **kwargs: Any) -> AsyncIterator[TAbstra
     if IS_PYDANTIC_V2:
         with suppress(ValueError, TypeError):
             if issubclass(params, BaseModel):
-                sign_params = {**sign.parameters}
-                for name, field in params.model_fields.items():
-                    name = field.alias or name
-                    sign_params[name] = sign_params[name].replace(default=field)
-
-                sign = sign.replace(parameters=[*sign_params.values()])
+                sign_params = [
+                    inspect.Parameter(
+                        name=name,
+                        kind=inspect.Parameter.KEYWORD_ONLY,
+                        annotation=field.annotation,
+                        default=field,
+                    )
+                    for name, field in params.model_fields.items()
+                ]
+
+                sign = sign.replace(parameters=sign_params)
 
     _pagination_params.__signature__ = sign  # type: ignore[attr-defined]