input: Write a python function to generate a histogram using matplotlib.
  assert generate_histogram([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) is None
  assert generate_histogram([1, 1, 1, 2, 2, 3]) is None
  assert generate_histogram([10, 20, 30, 40, 50]) is None
output: def generate_histogram(data):
      import matplotlib.pyplot as plt
      
      plt.hist(data, bins='auto', edgecolor='black')
      plt.xlabel('Value')
      plt.ylabel('Frequency')
      plt.title('Histogram')
      plt.show()