Update app.py
Browse files
app.py
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from flask import Flask, render_template, request, jsonify
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import pickle
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import numpy as np
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import requests
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import pandas as pd
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app = Flask(__name__)
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# Load model dan scaler yang sudah disimpan
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with open('model.pkl', 'rb') as model_file:
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model = pickle.load(model_file)
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with open('scaler.pkl', 'rb') as scaler_file:
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scaler = pickle.load(scaler_file)
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# Halaman utama
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@app.
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def home():
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return render_template('index.html')
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# Endpoint untuk prediksi berdasarkan input pengguna
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@app.
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def predict():
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try:
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# Mendapatkan data dari form input
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input_data = request.get_json()
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# Ambil nilai input (pastikan semuanya adalah angka)
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sell_1 = float(input_data['features'][2])
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sell_2 = float(input_data['features'][1])
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sell_3 = float(input_data['features'][0])
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# Normalisasi data menggunakan scaler
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last_row = np.array([
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scaler.transform([[sell_1]]).flatten()[0],
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scaler.transform([[sell_2]]).flatten()[0],
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scaler.transform([[sell_3]]).flatten()[0]
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]).reshape(1, -1)
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# Buat DataFrame dari nilai yang telah dinormalisasi
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last_row_df = pd.DataFrame(last_row, columns=['sell-1', 'sell-2', 'sell-3'])
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# Prediksi harga berdasarkan model
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predicted_value_normalized = model.predict(last_row_df)
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predicted_value = scaler.inverse_transform(predicted_value_normalized.reshape(-1, 1))
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# Ambil harga emas terakhir untuk perhitungan persentase
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last_price_inversed = sell_1 # Menggunakan harga hari ketiga (sell_3) sebagai harga terakhir
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# Hitung perubahan persentase
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percentage_change = ((predicted_value[0][0] - last_price_inversed) / last_price_inversed) * 100
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# Tentukan tanda perubahan (positif atau negatif)
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change_sign = '+' if percentage_change > 0 else ''
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# Kembalikan hasil prediksi dalam bentuk JSON
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return jsonify({
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'last_price': last_price_inversed,
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'predicted_value': predicted_value[0][0],
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'percentage_change': f"{change_sign}{percentage_change:.2f}%",
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'raw_data': input_data
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})
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except Exception as e:
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return jsonify({'error': str(e)}), 400
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# Endpoint untuk prediksi otomatis berdasarkan data API
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@app.
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def auto_predict():
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try:
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# Mendapatkan data yang dikirimkan dari frontend
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input_data = request.get_json()
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print(input_data)
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# Ambil nilai input (pastikan semuanya adalah angka)
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price_day_1 = float(input_data['features'][0])
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price_day_2 = float(input_data['features'][1])
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price_day_3 = float(input_data['features'][2])
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last_row = np.array([
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scaler.transform([[price_day_1]]).flatten()[0],
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scaler.transform([[price_day_2]]).flatten()[0],
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scaler.transform([[price_day_3]]).flatten()[0]
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]).reshape(1, -1)
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last_row_df = pd.DataFrame(last_row, columns=['sell-1', 'sell-2', 'sell-3'])
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# Prediksi harga
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predicted_value_normalized = model.predict(last_row_df)
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predicted_value = scaler.inverse_transform(predicted_value_normalized.reshape(-1, 1))
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# Ambil harga emas terakhir untuk perhitungan persentase
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last_price_inversed = price_day_3
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# Hitung perubahan persentase
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percentage_change = ((predicted_value[0][0] - last_price_inversed) / last_price_inversed) * 100
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# Tentukan tanda perubahan (positif atau negatif)
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if percentage_change > 0:
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change_sign = '+'
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else:
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change_sign = ''
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return jsonify({
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'last_price': last_price_inversed,
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'predicted_value': predicted_value[0][0],
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'percentage_change': f"{change_sign}{percentage_change:.2f}%",
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'raw_data': input_data
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})
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except Exception as e:
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return jsonify({'error': str(e)}), 400
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if __name__ == '__main__':
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app.run(debug=True)
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from flask import Flask, render_template, request, jsonify
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import pickle
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import numpy as np
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import requests
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import pandas as pd
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app = Flask(__name__)
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# Load model dan scaler yang sudah disimpan
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with open('model.pkl', 'rb') as model_file:
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model = pickle.load(model_file)
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with open('scaler.pkl', 'rb') as scaler_file:
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scaler = pickle.load(scaler_file)
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# Halaman utama
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@app.api_route('/')
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def home():
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return render_template('index.html')
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# Endpoint untuk prediksi berdasarkan input pengguna
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@app.api_route('/predict', methods=['POST'])
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def predict():
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try:
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# Mendapatkan data dari form input
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input_data = request.get_json()
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# Ambil nilai input (pastikan semuanya adalah angka)
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sell_1 = float(input_data['features'][2])
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sell_2 = float(input_data['features'][1])
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sell_3 = float(input_data['features'][0])
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# Normalisasi data menggunakan scaler
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last_row = np.array([
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scaler.transform([[sell_1]]).flatten()[0],
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scaler.transform([[sell_2]]).flatten()[0],
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scaler.transform([[sell_3]]).flatten()[0]
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]).reshape(1, -1)
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# Buat DataFrame dari nilai yang telah dinormalisasi
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last_row_df = pd.DataFrame(last_row, columns=['sell-1', 'sell-2', 'sell-3'])
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# Prediksi harga berdasarkan model
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predicted_value_normalized = model.predict(last_row_df)
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predicted_value = scaler.inverse_transform(predicted_value_normalized.reshape(-1, 1))
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# Ambil harga emas terakhir untuk perhitungan persentase
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last_price_inversed = sell_1 # Menggunakan harga hari ketiga (sell_3) sebagai harga terakhir
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# Hitung perubahan persentase
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percentage_change = ((predicted_value[0][0] - last_price_inversed) / last_price_inversed) * 100
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# Tentukan tanda perubahan (positif atau negatif)
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change_sign = '+' if percentage_change > 0 else ''
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# Kembalikan hasil prediksi dalam bentuk JSON
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return jsonify({
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'last_price': last_price_inversed,
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'predicted_value': predicted_value[0][0],
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'percentage_change': f"{change_sign}{percentage_change:.2f}%",
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'raw_data': input_data
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})
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except Exception as e:
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return jsonify({'error': str(e)}), 400
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# Endpoint untuk prediksi otomatis berdasarkan data API
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@app.api_route('/auto-predict', methods=['POST'])
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def auto_predict():
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try:
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# Mendapatkan data yang dikirimkan dari frontend
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input_data = request.get_json()
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print(input_data)
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# Ambil nilai input (pastikan semuanya adalah angka)
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price_day_1 = float(input_data['features'][0])
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price_day_2 = float(input_data['features'][1])
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price_day_3 = float(input_data['features'][2])
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last_row = np.array([
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scaler.transform([[price_day_1]]).flatten()[0],
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scaler.transform([[price_day_2]]).flatten()[0],
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scaler.transform([[price_day_3]]).flatten()[0]
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]).reshape(1, -1)
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last_row_df = pd.DataFrame(last_row, columns=['sell-1', 'sell-2', 'sell-3'])
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# Prediksi harga
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predicted_value_normalized = model.predict(last_row_df)
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predicted_value = scaler.inverse_transform(predicted_value_normalized.reshape(-1, 1))
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# Ambil harga emas terakhir untuk perhitungan persentase
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last_price_inversed = price_day_3
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# Hitung perubahan persentase
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percentage_change = ((predicted_value[0][0] - last_price_inversed) / last_price_inversed) * 100
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# Tentukan tanda perubahan (positif atau negatif)
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if percentage_change > 0:
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change_sign = '+'
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else:
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change_sign = ''
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return jsonify({
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'last_price': last_price_inversed,
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'predicted_value': predicted_value[0][0],
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'percentage_change': f"{change_sign}{percentage_change:.2f}%",
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'raw_data': input_data
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})
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except Exception as e:
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return jsonify({'error': str(e)}), 400
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if __name__ == '__main__':
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app.run(debug=True)
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