code: def is_0_1(x_org):
      x = x_org[~pd.isnull(x_org)]
      u = np.unique(x)
      if len(u) != 2:
          return False
      return 0 in u and 1 in u
  
imports: import numpy
  import pandas
  from scipy import stats
  from sklearn import preprocessing
label_desc: Use image node_id 5 for calling the PreprocessingUtils obj's underlying member method code with example usage: obj.is_0_1(x_org) and returns: unknown, False