code: def fun(self, x):
      a = -(x[1] + 47) * np.sin(np.sqrt(abs(x[1] + x[0] / 2.0 + 47)))
      b = -x[0] * np.sin(np.sqrt(abs(x[0] - (x[1] + 47))))
      return a + b
  
imports: import time
  import numpy
  from numpy import sin, cos, pi, exp, sqrt, abs
  from scipy.optimize import rosen
label_desc: Use image node_id 1 for calling the EggHolder obj's underlying member method code with example usage: obj.fun(x) and returns: unknown