code: def loglike(self, x):
      return (
          -((x[0] ** 2 + x[1] - 11.0) ** 2)
          - (x[0] + x[1] ** 2 - 7.0) ** 2
      )
  
imports: import copy
  import numpy
  from scipy.stats import multivariate_normal
  import scipy.special
label_desc: Use image node_id 2 for calling the Himmelblau obj's underlying member method code with example usage: obj.loglike(x) and returns: unknown