get rid of protected objects (#57)

Co-authored-by: Vitaliy Zakharkiv <zakharkiv.vv@uds.ua.energy>

.gitignore

@@ -19,4 +19,5 @@ wtf
 coverage.json
 site
 wtf.py
-.DS_Store
+.DS_Store
+.idea/

fast_depends/core/build.py

@@ -68,7 +68,7 @@ def build_call_model(
         dep: Optional[Depends] = None
         custom: Optional[CustomField] = None
 
-        if param.annotation is inspect._empty:
+        if param.annotation is inspect.Parameter.empty:
             annotation = Any
 
         elif get_origin(param.annotation) is Annotated:
@@ -117,7 +117,7 @@ def build_call_model(
             ), "You can not use `CustomField` with `Annotated` and default both"
             custom = default
 
-        elif default is inspect._empty:
+        elif default is inspect.Parameter.empty:
             class_fields[param_name] = (annotation, ...)
 
         else:
@@ -169,7 +169,7 @@ def build_call_model(
     )
 
     response_model: Optional[Type[ResponseModel[T]]]
-    if cast and return_annotation and return_annotation is not inspect._empty:
+    if cast and return_annotation and return_annotation is not inspect.Parameter.empty:
         response_model = create_model(  # type: ignore[assignment]
             "ResponseModel",
             __config__=get_config_base(pydantic_config),

fast_depends/core/model.py

@@ -1,5 +1,5 @@
 from contextlib import AsyncExitStack, ExitStack
-from inspect import _empty, unwrap
+from inspect import Parameter, unwrap
 from typing import (
     Any,
     Awaitable,
@@ -191,7 +191,7 @@ def _solve(
         kw = {}
 
         for arg in self.keyword_args:
-            if (v := kwargs.pop(arg, _empty)) is not _empty:
+            if (v := kwargs.pop(arg, Parameter.empty)) is not Parameter.empty:
                 kw[arg] = v
 
         if "kwargs" in self.alias_arguments: