def list_param(current_scene_db, query_start, query_end):
    """lists the parameters in scene"""
    from src.praxxis.sqlite import sqlite_parameter
    from src.praxxis.display import display_param
    param_list = sqlite_parameter.list_param(current_scene_db, query_start,
        query_end)
    display_param.display_list_param(param_list)
    return param_list
