Rescale a stack

def scale(stack_name: str,
          stack_version: Optional[str],
          new_scale: int,
          region: Optional[str],
          remote: Optional[str]):
    '''Rescale a stack'''
    lizzy = setup_lizzy_client(remote)

    with Action('Requesting rescale..'):
        stack_id = '{stack_name}-{stack_version}'.format_map(locals())
        lizzy.scale(stack_id, new_scale, region=region)