code: def smoothing(x, alpha):
      """
      Exponential smoothing of a time series
      For x = 10**6 floats
      - Python runtime: 9 seconds
      - Parakeet runtime: .01 seconds
      """
      s = x.copy()
      for i in range(1, len(x)):
          s[i] = alpha * x[i] + (1 - alpha) * s[i - 1]
      return s
  
label_desc: Use image node_id 1 for calling a global function with example usage: smoothing(x, alpha) and returns: s