class_docstr: Mean DC shift analyzer
class_docstr_tok: ["Mean","DC","shift","analyzer"]
code: def setup(
      self,
      channels=None,
      samplerate=None,
      blocksize=None,
      totalframes=None,
  ):
      super(MeanDCShift, self).setup(
          channels, samplerate, blocksize, totalframes
      )
      self.values = numpy.array([0])
  
file_path: TimeSide/timeside/plugins/analyzer/dc.py
imports: from timeside.core import implements, interfacedoc
  from timeside.core.analyzer import Analyzer
  from timeside.core.api import IValueAnalyzer
  import numpy
label_desc: Use image node_id 1 for calling the MeanDCShift obj's underlying member method code with example usage: obj.setup(channels, samplerate, blocksize, totalframes) without return types