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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def create_destination(flowable, container, at_top_of_container=False):
 """Create a destination anchor in the `container` to direct links to `flowable` to."""

    vertical_position = 0 if at_top_of_container else container.cursor
    ids = flowable.get_ids(container.document)
    destination = NamedDestination(*(str(id) for id in ids))
    container.canvas.annotate(destination, 0, vertical_position,
                              container.width, None)
    container.document.register_page_reference(container.page, flowable)