'Starts a stack\'s instances.
**Required Permissions**: To use this action, an IAM user must
have a Manage permissions level for the stack, or an attached
policy that explicitly grants permissions. For more
information on user permissions, see `Managing User
Permissions`_.
:type stack_id: string
:param stack_id: The stack ID.'

def start_stack(self, stack_id):

    params = {'StackId': stack_id}
    return self.make_request(action='StartStack', body=json.dumps(params))
