{"fields": {"property_type_free": {"verbose_name": "Objektklasse", "type": "checkbox", "choices": [["apartment", "Wohnung"]]}, "rooms_by_value": {"verbose_name": "Anzahl Zimmer", "type": "checkbox", "choices": [2.5, 3.0, 3.5, 4.5, 5.0]}, "rent": {"verbose_name": "Bruttomiete", "type": "slider", "step": 10, "choices": [0, 8000]}, "area": {"verbose_name": "Fl\u00e4che", "type": "slider", "step": 1, "choices": [0, 400]}, "floor_free": {"verbose_name": "Stockwerk", "type": "checkbox", "choices": []}, "building_title_multiselect_free": {"verbose_name": "Geb\u00e4ude", "type": "multiselect", "choices": ["Dachwohnung"]}}}