<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def digest_json(soup):
 """digest in article json format"""

    abstract_tags = raw_parser.abstract(soup, abstract_type="executive-summary")
    abstract_json = None
    for tag in abstract_tags:
        abstract_json = render_abstract_json(tag)
    return abstract_json