docstr: Performs mating and produces new offsprings
docstr_tok: ["Performs","mating","and","produces","new","offsprings"]
code: def mate(self, k1, k2, features_to_vary, query_instance):
      """Performs mating and produces new offsprings"""
      # chromosome for offspring
      one_init = np.zeros(self.data_interface.number_of_features)
      for j in range(self.data_interface.number_of_features):
          gp1 = k1[j]
          gp2 = k2[j]
          feat_name = self.data_interface.feature_names[j]
  
          # random probability
          prob = random.random()
  
          if prob < 0.40:
              # if prob is less than 0.40, insert gene from parent 1
              one_init[j] = gp1
          elif prob < 0.80:
              # if prob is between 0.40 and 0.80, insert gene from parent 2
              one_init[j] = gp2
          else:
              # otherwise insert random gene(mutate) for maintaining diversity
              if feat_name in features_to_vary:
                  if (
                      feat_name
                      in self.data_interface.continuous_feature_names
                  ):
                      one_init[j] = np.random.uniform(
                          self.feature_range[feat_name][0],
                          self.feature_range[feat_name][0],
                      )
                  else:
                      one_init[j] = np.random.choice(
                          self.feature_range[feat_name]
                      )
              else:
                  one_init[j] = query_instance[j]
      return one_init
  
imports: import copy
  import random
  import timeit
  import numpy
  import pandas
  from raiutils.exceptions import UserConfigValidationException
  from dice_ml import diverse_counterfactuals
  from dice_ml.constants import ModelTypes
  from dice_ml.explainer_interfaces.explainer_base import ExplainerBase
label_desc: Use image node_id 16 for calling the DiceGenetic obj's underlying member method code with example usage: obj.mate(k1, k2, features_to_vary, query_instance) and returns: one_init