docs: update CLI reference documentation

🤖 Generated by GitHub Actions

Author: github-actions[bot]

docs/cli-reference/general-options.md

@@ -1216,21 +1216,21 @@ and generated code stay in sync. Works with both single files and directory outp
     ```python
     # generated by datamodel-codegen:
     #   filename:  person.json
-
+    
     from __future__ import annotations
-
-    from typing import Any
-
+    
+    from typing import Any, List, Optional
+    
     from pydantic import BaseModel, Field, conint
-
-
+    
+    
     class Person(BaseModel):
-        firstName: str | None = Field(None, description="The person's first name.")
-        lastName: str | None = Field(None, description="The person's last name.")
-        age: conint(ge=0) | None = Field(
+        firstName: Optional[str] = Field(None, description="The person's first name.")
+        lastName: Optional[str] = Field(None, description="The person's last name.")
+        age: Optional[conint(ge=0)] = Field(
             None, description='Age in years which must be equal to or greater than zero.'
         )
-        friends: list[Any] | None = None
+        friends: Optional[List[Any]] = None
         comment: None = None
     ```