Remove async from _get_model (#893)

Author: alexmojaki

pydantic_ai_slim/pydantic_ai/agent.py

@@ -275,7 +275,7 @@ async def main():
         """
         if infer_name and self.name is None:
             self._infer_name(inspect.currentframe())
-        model_used = await self._get_model(model)
+        model_used = self._get_model(model)
 
         deps = self._get_deps(deps)
         new_message_index = len(message_history) if message_history else 0
@@ -520,7 +520,7 @@ async def main():
             # f_back because `asynccontextmanager` adds one frame
             if frame := inspect.currentframe():  # pragma: no branch
                 self._infer_name(frame.f_back)
-        model_used = await self._get_model(model)
+        model_used = self._get_model(model)
 
         deps = self._get_deps(deps)
         new_message_index = len(message_history) if message_history else 0
@@ -971,7 +971,7 @@ def _register_tool(self, tool: Tool[AgentDepsT]) -> None:
 
         self._function_tools[tool.name] = tool
 
-    async def _get_model(self, model: models.Model | models.KnownModelName | None) -> models.Model:
+    def _get_model(self, model: models.Model | models.KnownModelName | None) -> models.Model:
         """Create a model configured for this agent.
 
         Args: