code: def __getitem__(self, v):
      try:
          v = np.ndarray.tolist(v)
      except TypeError:
          pass
      v = tuple(v)
      try:
          return self.cache[v]
      except KeyError:
          xval = LMap(v)
          self.cache[v] = xval
  
          return self.cache[v]
  
imports: from collections import namedtuple
  import time
  import logging
  import warnings
  import sys
  import numpy
  from scipy import spatial
  from scipy.optimize import OptimizeResult, minimize, Bounds
  from scipy.optimize._optimize import MemoizeJac
  from scipy.optimize._constraints import new_bounds_to_old
  from scipy.optimize._minimize import standardize_constraints
  from scipy._lib._util import _FunctionWrapper
  from scipy.optimize._shgo_lib._complex import Complex
label_desc: Use image node_id 2 for calling the LMapCache obj's underlying member method code with example usage: obj.__getitem__(v) and returns: self, self