def sort_tuple_list(tuple_list:list):
    """sort_tuple Sort a list of tuple

    Sort tuple. Ref: https://www.geeksforgeeks.org/python-program-to-sort-a-\
    list-of-tuples-by-second-item/

    Args:
        tuple_list (list): a list of tuple
    """
    tuple_list.sort(key = lambda x: x[0])  
    return tuple_list