docstr: This is inside an extra function for testing purpose
docstr_tok: ["This","is","inside","an","extra","function","for","testing","purpose"]
code: def _get_metafeatures(self, features):
      """This is inside an extra function for testing purpose"""
      # Load the task
  
      self.logger.info(
          "Going to use the following metafeature subset: %s", features
      )
      all_metafeatures = self.metafeatures
      all_metafeatures = all_metafeatures.loc[:, features]
  
      return all_metafeatures
  
imports: from collections import OrderedDict
  import numpy
  import pandas
  from ConfigSpace.configuration_space import Configuration
  from ConfigSpace.util import deactivate_inactive_hyperparameters
  from ..input import aslib_simple
  from ..metafeatures.metafeature import DatasetMetafeatures
label_desc: Use image node_id 6 for calling the MetaBase obj's underlying member method code with example usage: obj._get_metafeatures(features) and returns: all_metafeatures