解析土壤分层多深度上报

def solve():
    from pyodide.http import open_url
    from io import StringIO
    import pandas as pd, json
    devs_csv = open_url(____).read()
    devs = pd.read_csv(StringIO(____))
    def parse_depth_readings(____):
        p = json.loads(____)
        depth_readings = p.get(____)
        result = []
        for dr in depth_readings:
            depth = dr.get(____)
            for metric, value in dr.items():
                if metric == '____': continue
                result.append(____)
        return result
    payload = '____'
    rows = parse_depth_readings(____)
    print("____" + str(len(____)) + "____")
    for r in rows:
        print("____" + str(____) + "____" + r['____'] + "____" + str(____))