# for i in range(len(df)):
#     if df.iloc[i]['asset'] == df.iloc[i + 1]['asset']:
#         print(i)

# df = df.drop([1290]).reset_index()
# df.iloc[1288:1300]

bal = []

for i in range(len(df) - 1):
    d = {
          'balance': df.iloc[i]['total_usdt'] + df.iloc[i + 1]['total_usdt'],
          'upd': max(df.iloc[i]['update_time'], df.iloc[i+1]['update_time'])
        }
    bal.append(d)

frame = pd.DataFrame(bal)

fig = px.line(frame, x='upd', y='balance', title='total balance')
fig.update_layout(
    xaxis_title="time",
    yaxis_title="total balance",
)
fig.show()