```diff
--- test_files/278-original.txt	2025-03-07 19:06:41
+++ test_files/278-modified.txt	2025-03-07 19:06:41
@@ -13,12 +13,12 @@
         alias="team_Id",
         description="Team ID (Workspace)",
     )
-    page: int = Field(
+    page: t.Optional[int] = Field(
         default=None,
         alias="page",
         description="Page to fetch (starts at 0).",
     )
-    order_by: str = Field(
+    order_by: t.Optional[str] = Field(
         default=None,
         alias="order_by",
         description=(
@@ -26,34 +26,34 @@
             "  Options include: `id`, `created`, `updated`, and `due_date`. "
         ),
     )
-    reverse: bool = Field(
+    reverse: t.Optional[bool] = Field(
         default=None,
         alias="reverse",
         description="Tasks are displayed in reverse order.",
     )
-    subtasks: bool = Field(
+    subtasks: t.Optional[bool] = Field(
         default=None,
         alias="subtasks",
         description="Include or exclude subtasks. By default, subtasks are excluded.",
     )
-    space_ids: t.List[str] = Field(
+    space_ids: t.Optional[t.List[str]] = Field(
         default=None,
         alias="space_ids",
         description="Filter by Spaces. For example:    `?space_ids[]=1234&space_ids[]=6789`",
     )
-    project_ids: t.List[str] = Field(
+    project_ids: t.Optional[t.List[str]] = Field(
         default=None,
         alias="project_ids",
         description=(
             "Filter by Folders. For example:    `?project_ids[]=1234&project_ids[]=6789` "
         ),
     )
-    list_ids: t.List[str] = Field(
+    list_ids: t.Optional[t.List[str]] = Field(
         default=None,
         alias="list_ids",
         description="Filter by Lists. For example:    `?list_ids[]=1234&list_ids[]=6789`",
     )
-    statuses: t.List[str] = Field(
+    statuses: t.Optional[t.List[str]] = Field(
         default=None,
         alias="statuses",
         description=(
@@ -61,22 +61,22 @@
             "closed tasks, use the `include_closed` parameter.    For example:    `?statuses[]=to%20do&statuses[]=in%20progress` "
         ),
     )
-    include_closed: bool = Field(
+    include_closed: t.Optional[bool] = Field(
         default=None,
         alias="include_closed",
         description=(
-            "Include or excluse closed tasks. By default, they are excluded.   To include "
+            "Include or exclude closed tasks. By default, they are excluded.   To include "
             "closed tasks, use `include_closed: true`. "
         ),
     )
-    assignees: t.List[str] = Field(
+    assignees: t.Optional[t.List[str]] = Field(
         default=None,
         alias="assignees",
         description=(
             'Filter by Assignees using people"s ClickUp user id. For example:    `?assignees[]=1234&assignees[]=5678` '
         ),
     )
-    tags: t.List[str] = Field(
+    tags: t.Optional[t.List[str]] = Field(
         default=None,
         alias="tags",
         description=(
@@ -84,47 +84,47 @@
             "   `?tags[]=tag1&tags[]=this%20tag` "
         ),
     )
-    due_date_gt: int = Field(
+    due_date_gt: t.Optional[int] = Field(
         default=None,
         alias="due_date_gt",
         description="Filter by due date greater than Unix time in milliseconds.",
     )
-    due_date_lt: int = Field(
+    due_date_lt: t.Optional[int] = Field(
         default=None,
         alias="due_date_lt",
         description="Filter by due date less than Unix time in milliseconds.",
     )
-    date_created_gt: int = Field(
+    date_created_gt: t.Optional[int] = Field(
         default=None,
         alias="date_created_gt",
         description="Filter by date created greater than Unix time in milliseconds.",
     )
-    date_created_lt: int = Field(
+    date_created_lt: t.Optional[int] = Field(
         default=None,
         alias="date_created_lt",
         description="Filter by date created less than Unix time in milliseconds.",
     )
-    date_updated_gt: int = Field(
+    date_updated_gt: t.Optional[int] = Field(
         default=None,
         alias="date_updated_gt",
         description="Filter by date updated greater than Unix time in milliseconds.",
     )
-    date_updated_lt: int = Field(
+    date_updated_lt: t.Optional[int] = Field(
         default=None,
         alias="date_updated_lt",
         description="Filter by date updated less than Unix time in milliseconds.",
     )
-    date_done_gt: int = Field(
+    date_done_gt: t.Optional[int] = Field(
         default=None,
         alias="date_done_gt",
         description="Filter by date done greater than Unix time in milliseconds.",
     )
-    date_done_lt: int = Field(
+    date_done_lt: t.Optional[int] = Field(
         default=None,
         alias="date_done_lt",
         description="Filter by date done less than Unix time in milliseconds.",
     )
-    custom_fields: t.List[str] = Field(
+    custom_fields: t.Optional[t.List[str]] = Field(
         default=None,
         alias="custom_fields",
         description=(
@@ -133,7 +133,7 @@
             "  Learn more about [filtering using Custom Fields.](https://clickup.com/api) "
         ),
     )
-    custom_task_ids: bool = Field(
+    custom_task_ids: t.Optional[bool] = Field(
         default=None,
         alias="custom_task_ids",
         description=(
@@ -141,7 +141,7 @@
             "be `true`. "
         ),
     )
-    team_id: int = Field(
+    team_id: t.Optional[int] = Field(
         default=None,
         alias="team_id",
         description=(
@@ -149,19 +149,19 @@
             "`custom_task_ids=true&team_id=123`. "
         ),
     )
-    parent: str = Field(
+    parent: t.Optional[str] = Field(
         default=None,
         alias="parent",
         description="Include the parent task ID to return subtasks.",
     )
-    include_markdown_description: bool = Field(
+    include_markdown_description: t.Optional[bool] = Field(
         default=None,
         alias="include_markdown_description",
         description=(
             "To return task descriptions in Markdown format, use `?include_markdown_description=true`. "
         ),
     )
-    custom_items: t.List[int] = Field(
+    custom_items: t.Optional[t.List[int]] = Field(
         default=None,
         alias="custom_items",
         description=(
```
