code: def __init__(self):
      chl = self.data.close / ((self.data.high + self.data.low) / 2.0)
      dvu = self.p._movav(chl, period=self.p.maperiod)
      self.lines.dv2 = PercentRank(dvu, period=self.p.period) * 100
      super(DV2, self).__init__()
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  from .None import Indicator, SMA, PercentRank
label_desc: Use image node_id 1 to create a new DV2 object from inherited base classes: Indicator with example: obj = DV2()