Taking into account this context:

[Document(page_content='When you create a task definition, the Amazon ECS NAME_1 automatically creates a CloudFormation stack that has a name that begins with "ECS\\-NAME_1\\-NAME_2\\-TaskDefinition\\-"\\. If you used the NAME_3 CLI or SDK to deregister the task definition, then you must manually delete the task definition stack\\. For more information, see [Deleting a Stack](https://docs.NAME_3.amazon.com/AWSCloudFormation/latest/UserGuide/cfn-NAME_1-delete-stack.html) in the *NAME_3 CloudFormation User Guide*\\.\n\nTask definitions created after January 12, 2023 will not have a CloudFormation stack automatically created\\.\n\n**To deregister a new task definition \\(Amazon ECS NAME_1\\)**\n\n1. Open the NAME_1 at [https://NAME_1\\.NAME_3\\.amazon\\.com/ecs/NAME_2](https://NAME_1.NAME_3.amazon.com/ecs/NAME_2)\\.\n\n1. From the navigation bar, choose the region that contains your task definition\\.\n\n1. In the navigation pane, choose **Task definitions**\\.\n\n1. On the **Task definitions** page, choose the task definition family that contains one or more revisions that you want to deregister\\.\n\n1. On the **Task definitions** page, choose the task definition family that contains one or more revisions that you want to deeregister\\.\n\n1. On the **task definition Name** page, select the revisions to delete, and then choose **Actions**, **Deregister**\\.\n\n1. Verify the information in the **Deregister** window, and then choose **Deregister** to finish\\.', metadata={'source': '/Users/adomingues/Documents/Loka/work/tools/git_repos/markdown/deregister-task-definition-NAME_2.md'}),

in NAME_3 ECS how can I delete task definitions? Write your response with exactly 7 paragraphs, separated with the markdown divider: ***.
user