

@element_app.route('/cube/<slug>', method='GET')
def element_cube(mongodb, slug=None):
    DW = DataWarehouse()
    data = DW.get(slug)
    columns = (data.get('columns') or [])
    return {
        'columns': slug,
    }

dataset/ETHPy150Open mining/mining/mining/controllers/api/element.py element_cube/VarMisuse@60/79 `columns`->`slug`