def wrapper_commands() ->dict:
    """Lists the available 'wrapper' sub-commands of the 'chado' command with corresponding descriptions"""
    return {'extract':
        'run a pre-compiled query against the CHADO database', 'insert':
        'insert a new entity of a specified type into the CHADO database',
        'delete':
        'delete an entity of a specified type from the CHADO database',
        'import': 'import data from file into the CHADO database', 'export':
        'export data from the CHADO database to file', 'execute':
        'execute a function defined in a CHADO database', 'admin':
        'perform administrative tasks, such as creating or dumping a CHADO database'
        }
