docstr: Return a list of all runs for a dataset.
docstr_tok: ["Return","a","list","of","all","runs","for","a","dataset","."]
code: def get_runs(self, dataset_name, performance_measure=None):
      """Return a list of all runs for a dataset."""
      if performance_measure is None:
          performance_measure = list(self.algorithm_runs.keys())[0]
      return self.algorithm_runs[performance_measure].loc[dataset_name]
  
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 3 for calling the MetaBase obj's underlying member method code with example usage: obj.get_runs(dataset_name, performance_measure) and returns: self