new_contents: import pandas as pd
  from keras.layers import LSTM
  import matplotlib.pyplot as plt
  from datetime import datetime
  
  def date_parser(x):
      return datetime.strptime('190'+x, '%Y-%m')
      
  series = pd.read_csv("shampoo_sales.csv", header=0, parse_dates=[0], index_col=0, squeeze=True, date_parser=date_parser)
  series.head()
  
subject: create try_LSTM_univariate_time_series.py