chore(internal): update pydantic dependency

Author: stainless-app[bot]

requirements-dev.lock

@@ -219,6 +219,20 @@ prompt-toolkit==3.0.51
 propcache==0.3.1
     # via aiohttp
     # via yarl
+pydantic==2.11.9
+    # via agentex-sdk
+    # via agentex-sdk
+    # via fastapi
+    # via litellm
+    # via mcp
+    # via openai
+    # via openai-agents
+    # via pydantic-settings
+    # via python-on-whales
+    # via scale-gp
+    # via scale-gp-beta
+pydantic-core==2.33.2
+    # via pydantic
 protobuf==5.29.5
     # via ddtrace
     # via temporalio
@@ -233,19 +247,6 @@ pyasn1==0.6.1
     # via rsa
 pyasn1-modules==0.4.2
     # via google-auth
-pydantic==2.10.3
-    # via agentex-sdk
-    # via fastapi
-    # via litellm
-    # via mcp
-    # via openai
-    # via openai-agents
-    # via pydantic-settings
-    # via python-on-whales
-    # via scale-gp
-    # via scale-gp-beta
-pydantic-core==2.27.1
-    # via pydantic
 pydantic-settings==2.10.1
     # via mcp
 pygments==2.18.0
@@ -382,14 +383,16 @@ typing-extensions==4.12.2
     # via pydantic
     # via pydantic-core
     # via pyright
+    # via typing-inspection
+typing-inspection==0.4.1
+    # via pydantic
     # via python-on-whales
     # via referencing
     # via scale-gp
     # via scale-gp-beta
     # via temporalio
     # via typer
     # via typing-inspection
-typing-inspection==0.4.1
     # via pydantic-settings
 tzdata==2025.2
     # via agentex-sdk

requirements.lock

@@ -200,6 +200,19 @@ prompt-toolkit==3.0.51
 propcache==0.3.1
     # via aiohttp
     # via yarl
+pydantic==2.11.9
+    # via agentex-sdk
+    # via fastapi
+    # via litellm
+    # via mcp
+    # via openai
+    # via openai-agents
+    # via pydantic-settings
+    # via python-on-whales
+    # via scale-gp
+    # via scale-gp-beta
+pydantic-core==2.33.2
+    # via pydantic
 protobuf==5.29.5
     # via ddtrace
     # via temporalio
@@ -214,19 +227,6 @@ pyasn1==0.6.1
     # via rsa
 pyasn1-modules==0.4.2
     # via google-auth
-pydantic==2.10.3
-    # via agentex-sdk
-    # via fastapi
-    # via litellm
-    # via mcp
-    # via openai
-    # via openai-agents
-    # via pydantic-settings
-    # via python-on-whales
-    # via scale-gp
-    # via scale-gp-beta
-pydantic-core==2.27.1
-    # via pydantic
 pydantic-settings==2.10.1
     # via mcp
 pygments==2.19.2
@@ -351,14 +351,16 @@ typing-extensions==4.12.2
     # via opentelemetry-api
     # via pydantic
     # via pydantic-core
+    # via typing-inspection
+typing-inspection==0.4.1
+    # via pydantic
     # via python-on-whales
     # via referencing
     # via scale-gp
     # via scale-gp-beta
     # via temporalio
     # via typer
     # via typing-inspection
-typing-inspection==0.4.1
     # via pydantic-settings
 tzdata==2025.2
     # via agentex-sdk

src/agentex/_models.py

@@ -256,14 +256,15 @@ def model_dump(
             mode: Literal["json", "python"] | str = "python",
             include: IncEx | None = None,
             exclude: IncEx | None = None,
-            by_alias: bool = False,
+            by_alias: bool | None = None,
             exclude_unset: bool = False,
             exclude_defaults: bool = False,
             exclude_none: bool = False,
             round_trip: bool = False,
             warnings: bool | Literal["none", "warn", "error"] = True,
             context: dict[str, Any] | None = None,
             serialize_as_any: bool = False,
+            fallback: Callable[[Any], Any] | None = None,
         ) -> dict[str, Any]:
             """Usage docs: https://docs.pydantic.dev/2.4/concepts/serialization/#modelmodel_dump
 
@@ -295,10 +296,12 @@ def model_dump(
                 raise ValueError("context is only supported in Pydantic v2")
             if serialize_as_any != False:
                 raise ValueError("serialize_as_any is only supported in Pydantic v2")
+            if fallback is not None:
+                raise ValueError("fallback is only supported in Pydantic v2")
             dumped = super().dict(  # pyright: ignore[reportDeprecated]
                 include=include,
                 exclude=exclude,
-                by_alias=by_alias,
+                by_alias=by_alias if by_alias is not None else False,
                 exclude_unset=exclude_unset,
                 exclude_defaults=exclude_defaults,
                 exclude_none=exclude_none,
@@ -313,13 +316,14 @@ def model_dump_json(
             indent: int | None = None,
             include: IncEx | None = None,
             exclude: IncEx | None = None,
-            by_alias: bool = False,
+            by_alias: bool | None = None,
             exclude_unset: bool = False,
             exclude_defaults: bool = False,
             exclude_none: bool = False,
             round_trip: bool = False,
             warnings: bool | Literal["none", "warn", "error"] = True,
             context: dict[str, Any] | None = None,
+            fallback: Callable[[Any], Any] | None = None,
             serialize_as_any: bool = False,
         ) -> str:
             """Usage docs: https://docs.pydantic.dev/2.4/concepts/serialization/#modelmodel_dump_json
@@ -348,11 +352,13 @@ def model_dump_json(
                 raise ValueError("context is only supported in Pydantic v2")
             if serialize_as_any != False:
                 raise ValueError("serialize_as_any is only supported in Pydantic v2")
+            if fallback is not None:
+                raise ValueError("fallback is only supported in Pydantic v2")
             return super().json(  # type: ignore[reportDeprecated]
                 indent=indent,
                 include=include,
                 exclude=exclude,
-                by_alias=by_alias,
+                by_alias=by_alias if by_alias is not None else False,
                 exclude_unset=exclude_unset,
                 exclude_defaults=exclude_defaults,
                 exclude_none=exclude_none,