Get the extension information interface of the apartment

GET https://api.coohom.com/global/floorplan/{obsPlanId:3(?:F|f)\w}10{}/extend

Get the extended information of the specified house plan. Including the building area of ​​the house, the area of ​​the apartment, the balcony, the terrace, the wall and other information
authority control: the merchant can only obtain the basic information of the house generated in the user system through this interface.