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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 entry_point(context, block_name):
 """include an snippet at the bottom of a block, if it exists For example, if the plugin with slug 'attachments' is registered waliki/attachments_edit_content.html will be included with {% entry_point 'edit_content' %} which is declared at the bottom of the block 'content' in edit.html """

    from waliki.plugins import get_plugins
    includes = []
    for plugin in get_plugins():
        template_name = 'waliki/%s_%s.html' % (plugin.slug, block_name)
        try:
            # template exists
            template.loader.get_template(template_name)
            includes.append(template_name)
        except template.TemplateDoesNotExist:
            continue
    context.update({'includes': includes})
    return context