Write code that brings all the values of the data frame to the same scale using the StandardScaler library from the sklearn.preprocessing library: sepal_length sepal_width 0 5.1 3.5 1 4.9 3.0 2 4.7 3.2

from sklearn.preprocessing import StandardScaler

std_scaler = StandardScaler()
df_scaled = std_scaler.fit_transform(df)
print(df_scaled)

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