human
Solve the following python programming problem given the following code:
def _prepare_fixture(table_ids, domain, html_response = False, task = None) : 
    if (table_ids and table_ids [0]) : 
        try : 
            data_types_view = [FixtureDataType.get (id) for id in table_ids] 
except ResourceNotFound : 
            if html_response : 
                raise FixtureDownloadError (_ ("Sorry, we couldn't find that table. If you think this is a mistake please report an issue.")) 
data_types_view = FixtureDataType.by_domain (domain) 
else : 
        data_types_view = FixtureDataType.by_domain (domain) 
if html_response : 
        data_types_view = list (data_types_view) [0 : 1] 
total_tables = len (data_types_view) 
    total_events = ((total_tables + (0 if (total_tables < 4) else 1)) * 10) 
    now = datetime.utcnow 
    last_update = [now ()] 
    upate_period = timedelta (seconds = 1) 
    def _update_progress(event_count, item_count, items_in_table) : 
        if (task and ((now () - last_update [0]) > upate_period)) : 
            last_update [0] = now () 
            processed = ((event_count * 10) + ((10.0 * item_count) / items_in_table)) 
            processed = min (processed, total_events) 
            DownloadBase.set_progress (task, processed, total_events) 
data_types_book = [] 
    data_items_book_by_type = { 
        
} 
    item_helpers_by_type = { 
        
} 
    '
        Contains all excel sheets in following format
        excel_sheets = {
            "types": {
                "headers": [],
                "rows": [(row), (row), (row)]
            }
            "next-sheet": {
                "headers": [],
                "rows": [(row), (row), (row)]
            },
            ...
        }
    ' 
    excel_sheets = { 
        
} 
    def empty_padding_list(length) : 
        return ['' for x in range (0, length)] 
max_fields = 0 
    max_item_attributes = 0 
    '
        - Helper to generate headers like "field 2: property 1"
        - Captures max_num_of_properties for any field of any type at the list-index.
        Example values:
            [0, 1]...

    
    

    Fix the buggy line: excel_sheets [data_type.tag] = max_combos
assistant
#Here is Python code to find that table.

excel_sheets [data_type.tag] = item_sheet