code: def aps15_fpp(x, n):
      if not 0 <= x <= 2 * 1e-3 / (1 + n):
          return np.e - 1.859
      return (
          np.exp((n + 1) * x / 2 * 1000)
          * (n + 1)
          / 2
          * 1000
          * (n + 1)
          / 2
          * 1000
      )
  
imports: from random import random
  import numpy
  from scipy.optimize import zeros
label_desc: Use image node_id 57 for calling a global function with example usage: aps15_fpp(x, n) and returns: unknown, unknown