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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 find_reference_section(docbody):
 """Search in document body for its reference section. More precisely, find the first line of the reference section. Effectively, the function starts at the end of a document and works backwards, line-by-line, looking for the title of a reference section. It stops when (if) it finds something that it considers to be the first line of a reference section. @param docbody: (list) of strings - the full document body. @return: (dictionary) : { 'start_line' : (integer) - index in docbody of 1st reference line, 'title_string' : (string) - title of the reference section. 'marker' : (string) - the marker of the first reference line, 'marker_pattern' : (string) - regexp string used to find the marker, 'title_marker_same_line' : (integer) - flag to indicate whether the reference section title was on the same line as the first reference line's marker or not. 1 if it was; 0 if not. } Much of this information is used by later functions to rebuild a reference section. -- OR -- (None) - when the reference section could not be found. """

    ref_details = None
    title_patterns = get_reference_section_title_patterns()

    # Try to find refs section title:
    for title_pattern in title_patterns:
        # Look for title pattern in docbody
        for reversed_index, line in enumerate(reversed(docbody)):
            title_match = title_pattern.match(line)
            if title_match:
                title = title_match.group('title')
                index = len(docbody) - 1 - reversed_index
                temp_ref_details, found_title = find_numeration(docbody[index:index + 6], title)
                if temp_ref_details:
                    if ref_details and 'title' in ref_details and ref_details['title'] and not temp_ref_details['title']:
                        continue
                    if ref_details and 'marker' in ref_details and ref_details['marker'] and not temp_ref_details['marker']:
                        continue

                    ref_details = temp_ref_details
                    ref_details['start_line'] = index
                    ref_details['title_string'] = title

                if found_title:
                    break

        if ref_details:
            break

    return ref_details