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**Features and Improvements**
- Add the following canned actions:
- :func:`~aws_stepfunction.actions.aws_lambda.lambda_invoke`
- :func:`~aws_stepfunction.actions.aws_ecs.ecs_run_task`
- :func:`~aws_stepfunction.actions.aws_ecs.ecs_start_task`
- :func:`~aws_stepfunction.actions.aws_ecs.ecs_stop_task`
- :func:`~aws_stepfunction.actions.aws_batch.batch_submit_job`
- :func:`~aws_stepfunction.actions.aws_batch.batch_cancel_job`
- :func:`~aws_stepfunction.actions.aws_batch.batch_terminate_job`
- :func:`~aws_stepfunction.actions.aws_glue.glue_start_job_run`
- :func:`~aws_stepfunction.actions.aws_glue.glue_batch_stop_job_run`
- :func:`~aws_stepfunction.actions.aws_glue.glue_start_crawler`
- :func:`~aws_stepfunction.actions.aws_glue.glue_stop_crawler`
- :func:`~aws_stepfunction.actions.aws_sns.sns_publish`
- :func:`~aws_stepfunction.actions.aws_sns.sns_publish_batch`
- :func:`~aws_stepfunction.actions.aws_sqs.sqs_send_message`
- :func:`~aws_stepfunction.actions.aws_sqs.sqs_send_message_batch`