code: def prepare_kde_data(data):
      _, numeric_data = NumericPlotBase.prepare_numeric_data(data)
      return numeric_data
  
imports: import importlib
  import pandas
  import numpy
  from pandas.core.base import PandasObject
  from pandas.core.dtypes.inference import is_integer
  from pyspark.ml.feature import Bucketizer
  from pyspark.mllib.stat import KernelDensity
  from pyspark.sql import functions
  from pyspark.pandas.missing import unsupported_function
  from pyspark.pandas.config import get_option
  from pyspark.pandas.utils import name_like_string
label_desc: Use image node_id 1 for calling the KdePlotBase obj's underlying member method code with example usage: obj.prepare_kde_data(data) and returns: numeric_data