> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tilebox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Context.submit_subtasks

```python theme={"system"}
def ExecutionContext.submit_subtasks(
  tasks: Sequence[Task],
  depends_on: list[FutureTask] = None,
  cluster: str | None = None,
  max_retries: int = 0,
  optional: bool = False
) -> list[FutureTask]
```

Submit multiple [subtasks](/workflows/concepts/tasks#subtasks-and-task-composition) from a currently executing task. Same as [submit\_subtask](/api-reference/python/tilebox.workflows/ExecutionContext.submit_subtask), but accepts a sequence of tasks.

## Parameters

<ParamField path="tasks" type="Sequence[Task]">
  The tasks to submit as subtasks.
</ParamField>

<ParamField path="depends_on" type="list[FutureTask]">
  An optional list of tasks already submitted within the same context that the subtasks depend on.
</ParamField>

<ParamField path="cluster" type="str">
  An optional [cluster slug](/workflows/concepts/clusters#managing-clusters) for running the subtasks. If not provided, the subtasks run on the same cluster as the parent task.
</ParamField>

<ParamField path="max_retries" type="int">
  Specify the maximum number of [retries](/workflows/concepts/tasks#retry-handling) for the subtasks in case of failure. The default is 0.
</ParamField>

<ParamField path="optional" type="bool">
  Whether the subtasks are [optional](/workflows/concepts/tasks#optional-tasks). If `True`, the subtasks will not fail the job if they fail. Tasks that depend on them will still execute even if they failed. The default is `False`.
</ParamField>

## Returns

A list of `FutureTask` objects representing the submitted subtasks. Can be used to set up dependencies between tasks.

<RequestExample>
  ```python Python theme={"system"}
  # within the execute method of a Task:
  subtasks = context.submit_subtasks([
      MySubtask(i) for i in range(10)
  ])
  dependent_subtask = context.submit_subtask(
      MyOtherSubtask(), depends_on=subtasks
  )
  ```
</RequestExample>