code: def keltner_channel_wband(
      high,
      low,
      close,
      window=20,
      window_atr=10,
      fillna=False,
      original_version=True,
  ):
      """Keltner Channel Band Width
  
      https://school.stockcharts.com/doku.php?id=technical_indicators:keltner_channels
  
      Args:
          high(pandas.Series): dataset 'High' column.
          low(pandas.Series): dataset 'Low' column.
          close(pandas.Series): dataset 'Close' column.
          window(int): n period.
          window_atr(int): n atr period. Only valid if original_version param is False.
          fillna(bool): if True, fill nan values.
          original_version(bool): if True, use original version as the centerline (SMA of typical price)
              if False, use EMA of close as the centerline. More info:
              https://school.stockcharts.com/doku.php?id=technical_indicators:keltner_channels
  
      Returns:
          pandas.Series: New feature generated.
      """
      indicator = KeltnerChannel(
          high=high,
          low=low,
          close=close,
          window=window,
          window_atr=window_atr,
          fillna=fillna,
          original_version=original_version,
      )
      return indicator.keltner_channel_wband()
  
imports: import numpy
  import pandas
  from ta.utils import IndicatorMixin
label_desc: Use image node_id 12 for calling a global function with example usage: keltner_channel_wband(high, low, close, window, window_atr, fillna, original_version) and returns: indicator